a(n) = n^5*H(n) where H() is the Hurwitz class number.

Terms

a(0) =0a(1) =0a(2) =0a(3) =81a(4) =512a(5) =0a(6) =0a(7) =16807a(8) =32768a(9) =0a(10) =0a(11) =161051a(12) =331776a(13) =0a(14) =0a(15) =1518750a(16) =1572864a(17) =0a(18) =0a(19) =2476099a(20) =6400000a(21) =0a(22) =0a(23) =19309029a(24) =15925248a(25) =0a(26) =0a(27) =19131876a(28) =34420736a(29) =0