Expansion of e.g.f. 2*sec(exp(x)-1) - 2*tan(exp(x)-1) - exp(x).
A335788
Expansion of e.g.f. 2*sec(exp(x)-1) - 2*tan(exp(x)-1) - exp(x).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =11a(4) =49a(5) =263a(6) =1675a(7) =12417a(8) =105183a(9) =1002475a(10) =10616589a(11) =123679907a(12) =1571831251a(13) =21640964933a(14) =320872742611
External references
- oeis: A335788