A033733 - OEIS

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A033733

Expansion of Product_{d | 21} theta_3(q^d).

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.)