a(1) = 2, a(2) = -32; a(n) = -16*a(n - 1) + 12*add(binomial(2*n - 2, 2*i)*a(i)*a(n - 1 - i), i = 1 .. n - 2).
A069182
a(1) = 2, a(2) = -32; a(n) = -16*a(n - 1) + 12*add(binomial(2*n - 2, 2*i)*a(i)*a(n - 1 - i), i = 1 .. n - 2).
Terms
- a(0) =2a(1) =-32a(2) =800a(3) =-35840a(4) =2508800a(5) =-246579200a(6) =32614400000
External references
- oeis: A069182