G.f. A(x) satisfies: A(x) = x + x^2 * A(x/(1 - 5*x)) / (1 - 5*x).

A351132

G.f. A(x) satisfies: A(x) = x + x^2 * A(x/(1 - 5*x)) / (1 - 5*x).

Terms

    a(0) =0a(1) =1a(2) =0a(3) =1a(4) =10a(5) =76a(6) =530a(7) =3701a(8) =27810a(9) =237151a(10) =2316350a(11) =25135126a(12) =292106400a(13) =3559029501a(14) =45211131460a(15) =600619791201

External references