2, 2.5, 3.333... , 4.25, 5.6, 6.8333... ,8.285714285714... , 9.625, 11.111..., 12.9, 14.545454..., 16.41666..., 18.30769..., ...
or written in fractions
2/1, 5/2, 10/3, 17/4, 28/5, 41/6, 58/7, 77/8, 100/9, 129/10, 160/11, 197/12, 238/13, ...
The difference between the numerators of term (n) and term (n+1) is the (n+1)-th prime number, the denominator of term n is n.