What is the operation law of 25 × 17 + 25 × 23 = 25 × (17 + 23)

What is the operation law of 25 × 17 + 25 × 23 = 25 × (17 + 23)

The distribution law of multiplication is used
That is: a (B + C) = AB + AC -- reverse use

Find the law. What's the law? 2,5,8,12,7,6,7,2,8,1,1,13,3,13,16,60,30,80
The first row: 12; the second row: 6, 2; the third row:; the fourth row: 13, 13, 16; the fifth row: 60, 30, 80.

2、5、8、12
7、6、7、2
8、1、1、10
13、3、13、16
60、30、58、80
60=2*（2+7*8+13）
30=2*（5+6+1+3）
58=2*（8+7+1+13）
80=2*（12+2+10+16）

Find the rule 2,6,30,60130

1^3+1=2
2^3-2=6
3^3+3=30
4^3-4=60
5^3+5=130

Find a rule to fill in the number, 2, 6, 30, 60130, what's behind it

an=n^3+(-1)^(n+1)*n
a6=6^3+(-1)^(6+1)*6
=216-6
=210

3、11、13、29、31、（） A、51 B、52 C、54 D、55

I've seen it on the Internet