A383794 Denominators of Dirichlet g.f.: Sum_{n>=1} a(n)/n^s = zeta(s-1)^(1/3).

1, 3, 1, 9, 3, 3, 3, 81, 1, 9, 3, 9, 3, 9, 3, 243, 3, 3, 3, 27, 3, 9, 3, 81, 9, 9, 3, 27, 3, 9, 3, 729, 3, 9, 9, 9, 3, 9, 3, 243, 3, 9, 3, 27, 3, 9, 3, 243, 9, 27, 3, 27, 3, 9, 9, 243, 3, 9, 3, 27, 3, 9, 3, 6561, 9, 9, 3, 27, 3, 27, 3, 81, 3, 9, 9, 27, 9, 9, 3, 729

Offset

1,2

Links

Vaclav Kotesovec, Table of n, a(n) for n = 1..10000

Prog

(PARI) for(n=1, 100, print1(denominator(direuler(p=2, n, 1/(1-p*X)^(1/3))[n]), ", "))

Crossrefs

Cf. A256688, A256689, A257099, A383705, A383793 (numerators).

Sequence in context: A249266 A309057 A246269 * A328475 A126186 A368568

Adjacent sequences: A383791 A383792 A383793 * A383795 A383796 A383797

Keyword

nonn,frac,mult

Author

Vaclav Kotesovec, May 10 2025

Status

approved