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A033772 Product t2(q^d); d | 13, where t2 = theta2(q)/(2*q^(1/4)). 1
1, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 2, 0, 0, 0, 2, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 2, 2, 0, 1, 0, 0, 2, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,29

COMMENTS

Also the number of positive odd solutions to equation x^2 + 13*y^2 = 8*n + 14. - Seiichi Manyama, May 28 2017

LINKS

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

MATHEMATICA

QP=QPochhammer; s=QP[q^2]^2 (QP[q^26]^2 / (QP[q] QP[q^13]))+O[q]^105; CoefficientList[s, q] (* Vincenzo Librandi, May 31 2017 *)

CROSSREFS

Sequence in context: A070141 A088722 A122180 * A086015 A249856 A086012

Adjacent sequences:  A033769 A033770 A033771 * A033773 A033774 A033775

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Seiichi Manyama, May 22 2017

STATUS

approved

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Last modified April 20 09:59 EDT 2019. Contains 322309 sequences. (Running on oeis4.)