G.f. A(x) satisfies A(x) = 1/( 1 - x*A(x) / (1-x)^3 )^3.
A382921
G.f. A(x) satisfies A(x) = 1/( 1 - x*A(x) / (1-x)^3 )^3.
Terms
- a(0) =1a(1) =3a(2) =24a(3) =199a(4) =1776a(5) =16713a(6) =163429a(7) =1644852a(8) =16929576a(9) =177384877a(10) =1885842105a(11) =20292695751a(12) =220595817213
External references
- oeis: A382921