0,4

Also the number of positive odd solutions to equation a^2 + 3*b^2 + 9*c^2 = 8*n + 13. - Seiichi Manyama, May 29 2017

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

Sequence in context: A129449 A033798 A033792 * A033786 A137696 A275731

Adjacent sequences: A033765 A033766 A033767 * A033769 A033770 A033771

nonn

N. J. A. Sloane

More terms from Seiichi Manyama, May 22 2017

approved