a(1) = 7; for n > 1, a(n) is the hypotenuse of the right triangle with legs a(n) - 1 and a(n-1).
A231579
a(1) = 7; for n > 1, a(n) is the hypotenuse of the right triangle with legs a(n) - 1 and a(n-1).
Terms
- a(0) =7a(1) =25a(2) =313a(3) =48985a(4) =1199765113
External references
- oeis: A231579