Expansion of e.g.f. (sec(x) + tan(x))*(1 - LambertW(-x)*(2 + LambertW(-x))/2).

A307592

Expansion of e.g.f. (sec(x) + tan(x))*(1 - LambertW(-x)*(2 + LambertW(-x))/2).

Terms

    a(0) =1a(1) =2a(2) =4a(3) =11a(4) =47a(5) =296a(6) =2638a(7) =31184a(8) =460445a(9) =8121616a(10) =166019736a(11) =3851820576a(12) =99905492939

External references