A033776 Product t2(q^d); d | 17, where t2 = theta2(q)/(2*q^(1/4)).

1, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 2, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0

Offset

0,46

Comments

Also the number of positive odd solutions to equation x^2 + 17*y^2 = 8*n + 18. - Seiichi Manyama, May 29 2017

References

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

Links

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

Crossrefs

Sequence in context: A085858 A188172 A106671 * A117371 A117370 A332007

Adjacent sequences: A033773 A033774 A033775 * A033777 A033778 A033779

Keyword

nonn,easy

Author

N. J. A. Sloane

Extensions

More terms from Kok Seng Chua (chuaks(AT)ihpc.nus.edu.sg), May 16 2000

Status

approved