G.f.: A(x) = Sum_{n>=0} x^n / Product_{k=1..n} (1 - 5^(n-k)*x^k).

A193191

G.f.: A(x) = Sum_{n>=0} x^n / Product_{k=1..n} (1 - 5^(n-k)*x^k).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =7a(4) =53a(5) =887a(6) =32679a(7) =2747187a(8) =508394434a(9) =214213272638

External references