G.f. A(x) satisfies: A(x) = 1 + x * A(x/(1 - x)^4) / (1 - x)^4.
A351817
G.f. A(x) satisfies: A(x) = 1 + x * A(x/(1 - x)^4) / (1 - x)^4.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =23a(4) =139a(5) =1052a(6) =9166a(7) =90073a(8) =989205a(9) =11981051a(10) =158149438a(11) =2255926638a(12) =34549223880a(13) =564898101239
External references
- oeis: A351817