There is a fractional sequence: 2 / 1,3 / 2,5 / 3,8 / 5,13 / 8,21 / 13 ··············································································

There is a fractional sequence: 2 / 1,3 / 2,5 / 3,8 / 5,13 / 8,21 / 13 ··············································································

F(n) = (1/2)*((sqrt(5)+1)^(n+2)-(1-sqrt(5))^(n+2))/((sqrt(5)+1)^(n+1)-(1-sqrt(5))^(n+1))