Expansion of g.f. A(x) satisfying 0 = Sum_{k=0..n} (-1)^k * binomial(2*n, 2*k) * ([x^k] A(x)^n) for n >= 1.
A375440
Expansion of g.f. A(x) satisfying 0 = Sum_{k=0..n} (-1)^k * binomial(2*n, 2*k) * ([x^k] A(x)^n) for n >= 1.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =65a(4) =1593a(5) =61953a(6) =3476813a(7) =265517441a(8) =26492540401
External references
- oeis: A375440