Expansion of e.g.f. Product_{k>=1} (1 + x^k/k!)^(k^2).
A371309
Expansion of e.g.f. Product_{k>=1} (1 + x^k/k!)^(k^2).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =21a(4) =88a(5) =645a(6) =4386a(7) =33061a(8) =296808a(9) =2674377a(10) =26757190a(11) =285294801a(12) =3199971336a(13) =38104015417a(14) =476816609192
External references
- oeis: A371309