Expansion of e.g.f. exp( exp( (exp(2*x)-1)/2 ) - 1 ).
A380228
Expansion of e.g.f. exp( exp( (exp(2*x)-1)/2 ) - 1 ).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =21a(4) =139a(5) =1108a(6) =10287a(7) =108699a(8) =1285228a(9) =16783395a(10) =239571125a(11) =3706900992a(12) =61746357449
External references
- oeis: A380228