a(n) = [y^n*x^n/n] log( Sum_{m>=0} (m + y)^(2*m) * x^m ) for n >= 1.
A360238
a(n) = [y^n*x^n/n] log( Sum_{m>=0} (m + y)^(2*m) * x^m ) for n >= 1.
Terms
- a(0) =2a(1) =42a(2) =1376a(3) =60934a(4) =3377252a(5) =224036904a(6) =17282039280
External references
- oeis: A360238