Expansion of g.f. (Sum_{i>=0} (i! - 1)*x^i)/(Sum_{i>=0} i!*x^i).
A387674
Expansion of g.f. (Sum_{i>=0} (i! - 1)*x^i)/(Sum_{i>=0} i!*x^i).
Terms
- a(0) =0a(1) =0a(2) =1a(3) =4a(4) =17a(5) =88a(6) =549a(7) =3996a(8) =33089a(9) =306432a(10) =3135757a(11) =35134660a(12) =427878617a(13) =5628940072a(14) =79572364485
External references
- oeis: A387674