G.f. A(x) satisfies: A(x) = 1 + x + x^2 * A(x/(1 - 6*x)) / (1 - 6*x).
A351057
G.f. A(x) satisfies: A(x) = 1 + x + x^2 * A(x/(1 - 6*x)) / (1 - 6*x).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =7a(4) =49a(5) =349a(6) =2593a(7) =20755a(8) =184609a(9) =1851289a(10) =20735041a(11) =253471039a(12) =3310505425a(13) =45630322741a(14) =660993079393
External references
- oeis: A351057