G.f. A(x) satisfies A(x) = (1 + x*A(x)^3)/(1 - x*A(x))^2.
A379174
G.f. A(x) satisfies A(x) = (1 + x*A(x)^3)/(1 - x*A(x))^2.
Terms
- a(0) =1a(1) =3a(2) =20a(3) =176a(4) =1772a(5) =19309a(6) =221651a(7) =2640016a(8) =32322122a(9) =404256442a(10) =5142846467a(11) =66341063274a(12) =865723122919
External references
- oeis: A379174