A297122 a(n) = n^5*H(n) where H() is the Hurwitz class number.

0, 0, 0, 81, 512, 0, 0, 16807, 32768, 0, 0, 161051, 331776, 0, 0, 1518750, 1572864, 0, 0, 2476099, 6400000, 0, 0, 19309029, 15925248, 0, 0, 19131876, 34420736, 0, 0, 85887453, 100663296, 0, 0, 105043750, 151165440, 0, 0, 360896796, 204800000, 0, 0, 147008443

Offset

0,4

Links

Seiichi Manyama, Table of n, a(n) for n = 0..5000

Formula

a(n) = n^5*A259825(n)/12.

a(4*n+1) = a(4*n+2) = 0.

Prog

(PARI) {a(n) = n^5*qfbhclassno(n)}

Crossrefs

Cf. A000594, A259825, A297127.

Sequence in context: A235756 A235531 A235527 * A128912 A076090 A183428

Adjacent sequences: A297119 A297120 A297121 * A297123 A297124 A297125

Keyword

nonn

Author

Seiichi Manyama, Dec 26 2017

Status

approved