G.f. A(x) satisfies A(x) = 1 + x * A(x)^4 / (1 - x).
A349331
G.f. A(x) satisfies A(x) = 1 + x * A(x)^4 / (1 - x).
Terms
- a(0) =1a(1) =1a(2) =5a(3) =31a(4) =219a(5) =1678a(6) =13570a(7) =114014a(8) =985542a(9) =8708099a(10) =78298727a(11) =714105907a(12) =6590200215a(13) =61427125994a(14) =577456943614
External references
- oeis: A349331