cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A033722 Expansion of Product_{d | 10} theta_3(q^d).

Original entry on oeis.org

1, 2, 2, 4, 2, 2, 8, 4, 10, 10, 2, 16, 8, 12, 16, 4, 26, 20, 26, 24, 2, 32, 24, 28, 40, 2, 28, 40, 16, 28, 8, 24, 58, 48, 36, 4, 26, 44, 40, 56, 10, 36, 64, 36, 24, 10, 48, 52, 104, 66, 2, 72, 28, 60, 80, 16, 80, 80, 60, 56, 8, 60, 64, 116, 122, 12, 96, 76, 36, 96, 16, 72, 130
Offset: 0

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References

  • J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p 102 eq 9.

Crossrefs

Number of integer solutions to a^2 + 2*b^2 + 5*c^2 + m*d^2 = n: A319822 (m=5), A320163 (m=6), A320164 (m=7), A320165 (m=8), A320166 (m=9), this sequence (m=10).