a(n) = 20*a(n-1) - 64*a(n-2) for n > 1; a(0) = 85, a(1) = 1364.
A166917
a(n) = 20*a(n-1) - 64*a(n-2) for n > 1; a(0) = 85, a(1) = 1364.
Terms
- a(0) =85a(1) =1364a(2) =21840a(3) =349504a(4) =5592320a(5) =89478144a(6) =1431654400a(7) =22906486784a(8) =366503854080
External references
- oeis: A166917