G.f.: exp( Sum_{n>=1} [ Sum_{k>=1} k^(n^2) * x^(n*k) ] / n ), a power series in x with integer coefficients.
A276748
G.f.: exp( Sum_{n>=1} [ Sum_{k>=1} k^(n^2) * x^(n*k) ] / n ), a power series in x with integer coefficients.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =6a(4) =20a(5) =31a(6) =278a(7) =337a(8) =17412a(9) =24798a(10) =6772374a(11) =6838020a(12) =11484638201a(13) =11505059694
External references
- oeis: A276748