A002808: The composite numbers: numbers n of the form x*y for x > 1 and y > 1

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/Composite_numbers.html
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A002620: Quarter-squares: a(n) = floor(n/2)*ceiling(n/2). Equivalently, a(n) = floor(n^2/4)

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Decomposition into weight × level + jump of prime numbers in 3D, threejs - webGL (log(weight), log(level), log(jump))

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A002491: Smallest number of stones in Tchoukaillon (or Mancala, or Kalahari) solitaire that make use of n-th hole

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A002476: Primes of the form 6m + 1

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A002410: Nearest integer to imaginary part of n-th zero of Riemann zeta function

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A002410.html
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150 sequences decomposed into weight × level + jump in one GIF (log(weight),log(level)):

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A002384: Numbers m such that m^2 + m + 1 is prime

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A002384.html
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