E.g.f.: Product_{k>=1} 1/(1 - (exp(x) - 1)^k)^(1/k!).

A345756

E.g.f.: Product_{k>=1} 1/(1 - (exp(x) - 1)^k)^(1/k!).

Terms

    a(0) =1a(1) =1a(2) =4a(3) =20a(4) =132a(5) =1057a(6) =10036a(7) =110168a(8) =1369395a(9) =19009207a(10) =291638340a(11) =4898978911a(12) =89387432140

External references