A006093: a(n) = prime(n) - 1

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/Primes_minus_1.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/Primes_minus_1.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/Primes_minus_1.html

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A006073: Numbers k such that k, k+1 and k+2 all have the same number of distinct prime divisors

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A006073.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/A006073.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A006073.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

Generation of four sequences decomposed into weight × level + jump (log(weight), log(level), log(jump)) - three.js animation:
🧵⬇️

1: The natural numbers (A000027) ➡️ https://decompwlj.com/3DgraphGen/Natural_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

A006037: Weird numbers: abundant (A005101) but not pseudoperfect (A005835)

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

150 sequences decomposed into weight × level + jump in one GIF (log(weight),log(level)):
1000 sequences decomposed on https://decompwlj.com

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

A006036: Primitive pseudoperfect numbers

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