数字排列 找规律找规律7,9,40,74,1526（ ）7,11,17,23,（ ）2,30,130,350,（ ）54

7^2-9=40
9^2-7=74
40^2-74=1526
74^2-40=5436
1^3 +1 = 2
3^3 +3 = 30
5^3 +5 = 130
7^3 +7 = 350
9^3 +9 = 738