G.f. A(x) satisfies A(x) = 1 + x * A(x/(1 - x)^4) / (1 - x).
A351814
G.f. A(x) satisfies A(x) = 1 + x * A(x/(1 - x)^4) / (1 - x).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =8a(4) =42a(5) =272a(6) =2115a(7) =19010a(8) =192760a(9) =2172468a(10) =26896081a(11) =362184998a(12) =5262526484a(13) =81969555736
External references
- oeis: A351814