G.f. satisfies A^5 = BINOMIAL(A)^4; also equals A090356^4.

A090357

G.f. satisfies A^5 = BINOMIAL(A)^4; also equals A090356^4.

Terms

    a(0) =1a(1) =4a(2) =26a(3) =244a(4) =3131a(5) =52600a(6) =1111940a(7) =28559320a(8) =865622825a(9) =30250881420

External references