a(n) = 4*((2*n-1)*a(n-1) + (-1)^n*(n-2)!), with a(1) = 8, n > 1.
A302944
a(n) = 4*((2*n-1)*a(n-1) + (-1)^n*(n-2)!), with a(1) = 8, n > 1.
Terms
- a(0) =8a(1) =100a(2) =1996a(3) =55896a(4) =2012232a(5) =88538304a(6) =4603991328a(7) =276239482560
External references
- oeis: A302944