G.f. A(x) satisfies A(x/A(x)^4) = 1 + x; thus A(x) = 1 + series_reversion(x/A(x)^4).
A120974
G.f. A(x) satisfies A(x/A(x)^4) = 1 + x; thus A(x) = 1 + series_reversion(x/A(x)^4).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =38a(4) =532a(5) =9329a(6) =190312a(7) =4340296a(8) =108043128a(9) =2890318936a(10) =82209697588
External references
- oeis: A120974