a(n) = 5*a(n-1)*a(n-2)*a(n-3) - a(n-4) with n>4, a(1) = a(2) = a(3) = a(4) = 1.
A276259
a(n) = 5*a(n-1)*a(n-2)*a(n-3) - a(n-4) with n>4, a(1) = a(2) = a(3) = a(4) = 1.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =19a(6) =379a(7) =144019a(8) =5185404091
External references
- oeis: A276259