E.g.f.: exp(Sum_{n>=1} sigma(n) * x^n).
A294361
E.g.f.: exp(Sum_{n>=1} sigma(n) * x^n).
Terms
- a(0) =1a(1) =1a(2) =7a(3) =43a(4) =409a(5) =3841a(6) =50431a(7) =648187a(8) =10347793a(9) =170363809a(10) =3200390551a(11) =62855417131
External references
- oeis: A294361