a(0) = 1, a(1) = 9, and a(n) = 16*a(n-1) - a(n-2) - 4 for n >= 2.
A350925
a(0) = 1, a(1) = 9, and a(n) = 16*a(n-1) - a(n-2) - 4 for n >= 2.
Terms
- a(0) =1a(1) =9a(2) =139a(3) =2211a(4) =35233a(5) =561513a(6) =8948971a(7) =142622019a(8) =2273003329a(9) =36225431241a(10) =577333896523
External references
- oeis: A350925