Expansion of B(x)/sqrt(1 + 4*(B(x)-1)/5), where B(x) is the g.f. of A001449.

A387084

Expansion of B(x)/sqrt(1 + 4*(B(x)-1)/5), where B(x) is the g.f. of A001449.

Terms

    a(0) =1a(1) =3a(2) =23a(3) =211a(4) =2095a(5) =21752a(6) =232439a(7) =2534182a(8) =28041295a(9) =313833025a(10) =3544160216a(11) =40318629754a(12) =461455158383

External references