G.f. A(x) satisfies: A(x) = exp( Sum_{k>=1} (-1)^(k+1) * A(x^k)^4 * x^k / k ).
A052775
G.f. A(x) satisfies: A(x) = exp( Sum_{k>=1} (-1)^(k+1) * A(x^k)^4 * x^k / k ).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =26a(4) =184a(5) =1443a(6) =11888a(7) =101859a(8) =897529a(9) =8085103a(10) =74113656a(11) =689134849a(12) =6484074328a(13) =61620879930a(14) =590628242876
External references
- oeis: A052775