Observe the following regular series: 1 / 2, 1 / 3, 1 / 10, 1 / 15, 1 / 26, 1 / 35 According to this rule, what is the seventh number? Teach me, senior people~~~~~~~~~~~

Observe the following regular series: 1 / 2, 1 / 3, 1 / 10, 1 / 15, 1 / 26, 1 / 35 According to this rule, what is the seventh number? Teach me, senior people~~~~~~~~~~~

1/50
This question only needs to look at the denominator
2 = the square of 1 + 1
3 = 2 squared-1
10 = the square of 3 + 1
15 = square of 4-1
26 = the square of 5 + 1
35 = the square of 6-1
So it's going to be the square of 7 + 1 = 50