A174463 G.f.: exp( Sum_{n>=1} A174464(n)*x^n/n ) where A174464(n) = Sum_{d|n} C(n,d)^(n/d).

1, 1, 3, 12, 87, 730, 9323, 128897, 2328821, 45800665, 1070513276, 27128105536, 779931162856, 24144719737001, 823414381261067, 30074223785228997, 1187577588961841059, 49917004718553927293, 2241058871263618006056

Offset

0,3

Links

Table of n, a(n) for n=0..18.

Prog

(PARI) {a(n)=polcoeff(exp(sum(m=1, n, x^m/m*sumdiv(m, d, binomial(m, d)^(m/d)))+x*O(x^n)), n)}

Crossrefs

Cf. A174464.

Sequence in context: A260912 A266788 A039305 * A367143 A361583 A361584

Adjacent sequences: A174460 A174461 A174462 * A174464 A174465 A174466

Keyword

nonn

Author

Paul D. Hanna, Apr 04 2010

Status

approved