Expansion of e.g.f. (sec(x) + tan(x))*exp(x)/(1 - x).
A307593
Expansion of e.g.f. (sec(x) + tan(x))*exp(x)/(1 - x).
Terms
- a(0) =1a(1) =3a(2) =10a(3) =39a(4) =180a(5) =977a(6) =6156a(7) =44401a(8) =361872a(9) =3295025a(10) =33193284a(11) =366828033a(12) =4414938000a(13) =57501795977a(14) =805984165252
External references
- oeis: A307593