Mastodawn

A001651: Numbers not divisible by 3
A001651 ➡️ https://oeis.org/A001651

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A001651.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/A001651.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A001651.html

#decompwlj #math #mathematics #maths #sequence #OEIS #JavaScript #php #graph #3D #threejs #webGL #triangular #numbers #primes #PrimeNumbers #palindromes #animation #FundamentalTheoremOfArithmetic #sequences #NumberTheory #classification #integer #decomposition #number #theory #equation #graphs #sieve #fundamental #theorem #arithmetic #research

Rémi Eismann 2h ago

A001494: Numbers k such that phi(k) = phi(k+2)
A001494 ➡️ https://oeis.org/A001494

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A001494.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/A001494.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A001494.html

#decompwlj #math #mathematics #maths #sequence #OEIS #JavaScript #php #graph #3D #threejs #webGL #triangular #numbers #primes #PrimeNumbers #palindromes #animation #FundamentalTheoremOfArithmetic #sequences #NumberTheory #classification #integer #decomposition #number #theory #equation #graphs #sieve #fundamental #theorem #arithmetic #research

Rémi Eismann 1d ago

A001481: Numbers that are the sum of 2 squares
A001481 ➡️ https://oeis.org/A001481

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A001481.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/A001481.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A001481.html

#decompwlj #math #mathematics #maths #sequence #OEIS #JavaScript #php #graph #3D #threejs #webGL #triangular #numbers #primes #PrimeNumbers #palindromes #animation #FundamentalTheoremOfArithmetic #sequences #NumberTheory #classification #integer #decomposition #number #theory #equation #graphs #sieve #fundamental #theorem #arithmetic #research

Rémi Eismann 1d ago

A001463: Partial sums of A001462; also a(n) is the last occurrence of n in A001462
A001463 ➡️ https://oeis.org/A001463
A001462: Golomb's sequence: a(n) is the number of times n occurs, starting with a(1) = 1
A001462 ➡️ https://oeis.org/A001462

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A001463.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/A001463.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A001463.html

#decompwlj #math #mathematics #maths #sequence #OEIS #JavaScript #php #graph #3D #threejs #webGL #triangular #numbers #primes #PrimeNumbers #palindromes #animation #FundamentalTheoremOfArithmetic #sequences #NumberTheory #classification #integer #decomposition #number #theory #equation #graphs #sieve #fundamental #theorem #arithmetic #research

Rémi Eismann 1d ago

A001359: Lesser of twin primes
A001359 ➡️ https://oeis.org/A001359

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/Lesser_twin_primes.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/Lesser_twin_primes.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/Lesser_twin_primes.html

#decompwlj #math #mathematics #maths #sequence #OEIS #JavaScript #php #graph #3D #threejs #webGL #triangular #numbers #primes #PrimeNumbers #palindromes #animation #FundamentalTheoremOfArithmetic #sequences #NumberTheory #classification #integer #decomposition #number #theory #equation #graphs #sieve #fundamental #theorem #arithmetic #research

Rémi Eismann 1d ago

A001358: Semiprimes (or biprimes): products of two primes
A001358 ➡️ https://oeis.org/A001358

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/Semiprimes.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/Semiprimes.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/Semiprimes.html

#decompwlj #math #mathematics #maths #sequence #OEIS #JavaScript #php #graph #3D #threejs #webGL #triangular #numbers #primes #PrimeNumbers #palindromes #animation #FundamentalTheoremOfArithmetic #sequences #NumberTheory #classification #integer #decomposition #number #theory #equation #graphs #sieve #fundamental #theorem #arithmetic #research

Rémi Eismann 2d ago

A001102: Numbers k such that k / (sum of digits of k) is a square
A001102 ➡️ https://oeis.org/A001102

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A001102.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/A001102.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A001102.html

#decompwlj #math #mathematics #maths #sequence #OEIS #JavaScript #php #graph #3D #threejs #webGL #triangular #numbers #primes #PrimeNumbers #palindromes #animation #FundamentalTheoremOfArithmetic #sequences #NumberTheory #classification #integer #decomposition #number #theory #equation #graphs #sieve #fundamental #theorem #arithmetic #research

Rémi Eismann 2d ago

Decomposition into weight × level + jump of prime numbers:
- a new classification of primes ➡️ https://decompwlj.com/primedecomp.php
- in 3D - threejs - webGL ➡️ https://decompwlj.com/3Dgraph/Prime_numbers.html

#decompwlj #math #mathematics #maths #sequence #OEIS #JavaScript #php #graph #3D #threejs #webGL #triangular #numbers #primes #PrimeNumbers #palindromes #animation #FundamentalTheoremOfArithmetic #sequences #NumberTheory #classification #integer #decomposition #number #theory #equation #graphs #sieve #fundamental #theorem #arithmetic #research