A002977: Klarner-Rado sequence: a(1) = 1; subsequent terms are defined by the rule that if m is present so are 2m+1 and 3m+1
A002977 ➡️ https://oeis.org/A002977

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A002977.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/A002977.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A002977.html

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Decomposition into weight × level + jump of prime numbers in 3D, threejs - webGL (log(weight), log(level), log(jump))
➡️ https://decompwlj.com/3Dgraph/Prime_numbers.html

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A002858: Ulam numbers: a(1) = 1; a(2) = 2; for n>2, a(n) = least number > a(n-1) which is a unique sum of two distinct earlier terms
A002858 ➡️ https://oeis.org/A002858

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

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A002837: Numbers k such that k^2 - k + 41 is prime
A002837 ➡️ https://oeis.org/A002837

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A002837.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/A002837.html
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My data have not been verified but my work is highly reproducible.
- Downloads (csv, img, dump) ➡️ https://decompwlj.com/
- Algorithms ➡️ https://oeis.org/wiki/Decomposition_into_weight_*_level_%2B_jump#Algorithms

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A002822: Numbers m such that 6m-1, 6m+1 are twin primes
A002822 ➡️ https://oeis.org/A002822

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A002822.html
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A002808: The composite numbers: numbers n of the form x*y for x > 1 and y > 1
A002808 ➡️ https://oeis.org/A002808

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

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In the decomposition into weight × level + jump, the Twin Prime Conjecture becomes: "The number of prime numbers with a weight of 3 is infinite"

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A002620: Quarter-squares: a(n) = floor(n/2)*ceiling(n/2). Equivalently, a(n) = floor(n^2/4)
A002620 ➡️ https://oeis.org/A002620

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

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A002491: Smallest number of stones in Tchoukaillon (or Mancala, or Kalahari) solitaire that make use of n-th hole
A002491 ➡️ https://oeis.org/A002491

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A002491.html
3D graph Gen, threejs animation ➡️ https://decompwlj.com/3DgraphGen/A002491.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A002491.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