A fourth-order linear divisibility sequence: a(n) := (1/9)*(2^n + (-1)^n)*(2^(3*n) - (-1)^n).
A238539
A fourth-order linear divisibility sequence: a(n) := (1/9)*(2^n + (-1)^n)*(2^(3*n) - (-1)^n).
Terms
- a(0) =1a(1) =35a(2) =399a(3) =7735a(4) =112871a(5) =1893255a(6) =29593159a(7) =479082695a(8) =7620584391a(9) =122287263175
External references
- oeis: A238539