Expansion of e.g.f. exp( Sum_{k>=1} (2*k)! * (x/2)^k/k ).
A370084
Expansion of e.g.f. exp( Sum_{k>=1} (2*k)! * (x/2)^k/k ).
Terms
- a(0) =1a(1) =1a(2) =7a(3) =199a(4) =15985a(5) =2810401a(6) =916442551a(7) =497173378087
External references
- oeis: A370084