G.f. A(x) satisfies: 1 = Sum_{n>=0} x^n * ((1 + 5*x)^n - A(x))^(n+1), where A(0) = 0.
A325585
G.f. A(x) satisfies: 1 = Sum_{n>=0} x^n * ((1 + 5*x)^n - A(x))^(n+1), where A(0) = 0.
Terms
- a(0) =1a(1) =9a(2) =26a(3) =224a(4) =2476a(5) =23224a(6) =287376a(7) =3757374a(8) =52257501a(9) =788478999a(10) =12610776876a(11) =212979510624
External references
- oeis: A325585