G.f. A(x) satisfies: [x^(2*n-2)] A(x)^(n*(n+1)/2) = 0 and [x^(2*n-1)] A(x)^(n*(n+1)/2) = 0 for n > 1, with a(0) = 1, a(2) = 6.
A350525
G.f. A(x) satisfies: [x^(2*n-2)] A(x)^(n*(n+1)/2) = 0 and [x^(2*n-1)] A(x)^(n*(n+1)/2) = 0 for n > 1, with a(0) = 1, a(2) = 6.
Terms
- a(0) =1a(1) =6a(2) =-36a(3) =360a(4) =-4320a(5) =57024a(6) =-816480a(7) =12737088a(8) =-216950400a(9) =3985853184a(10) =-77049957888
External references
- oeis: A350525