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

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn

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