Expansion of e.g.f. Product_{k>=1} 1 / (1 - x^k/k)^2.
A371313
Expansion of e.g.f. Product_{k>=1} 1 / (1 - x^k/k)^2.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =40a(4) =254a(5) =1868a(6) =15996a(7) =153144a(8) =1637520a(9) =19191072a(10) =245463936a(11) =3390905472a(12) =50406479328a(13) =800678811840
External references
- oeis: A371313