a(0)-a(5) are -1, 0, 1, 12, -432, 93312; thereafter a(n) = (144*a(n-3)*a(n-1)+432*a(n-2)^2)/a(n-4).
A241593
a(0)-a(5) are -1, 0, 1, 12, -432, 93312; thereafter a(n) = (144*a(n-3)*a(n-1)+432*a(n-2)^2)/a(n-4).
Terms
- a(0) =-1a(1) =0a(2) =1a(3) =12a(4) =-432a(5) =93312a(6) =241864704a(7) =-940369969152
External references
- oeis: A241593