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A033733 Expansion of Product_{d | 21} theta_3(q^d). 2
1, 2, 0, 2, 6, 0, 0, 6, 4, 2, 4, 12, 6, 4, 8, 0, 10, 0, 0, 16, 8, 6, 4, 12, 4, 14, 8, 2, 34, 12, 4, 16, 40, 12, 12, 48, 6, 28, 8, 4, 44, 24, 8, 16, 44, 0, 12, 24, 10, 58, 16, 0, 28, 36, 0, 24, 100, 16, 16, 48, 8, 28, 16, 6, 62 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

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

LINKS

Seiichi Manyama, Table of n, a(n) for n = 0..10000

Michael Gilleland, Some Self-Similar Integer Sequences

CROSSREFS

Sequence in context: A033745 A033721 A033739 * A115951 A057607 A264954

Adjacent sequences:  A033730 A033731 A033732 * A033734 A033735 A033736

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified April 13 01:36 EDT 2021. Contains 342934 sequences. (Running on oeis4.)