Number reasoning 2,5,11,56, () question 2 1,6,20,42,72, () what should be filled in brackets

Number reasoning 2,5,11,56, () question 2 1,6,20,42,72, () what should be filled in brackets

2,5,11,56, (617) -- starting from the third term, each term is the product of the first two terms plus 1. So 11 * 56 + 1 = 617
1,6,20,42,72, (110) ---- item 1 * 1 = 1
The second 2 * 3 = 6
The third 4 * 5 = 20
The fourth item 6 * 7 = 42
Item 5 8 * 9 = 72
Item 6 10 * 11 = 110

A group of data 0 12 3 56 78 takes the maximum value within the range of 0 12 3, what function to use and how to column the formula? That is to say, take 3 in 0-3
In addition, I'm talking about the functions of Excel table

Enter in E1:
=INDEX(A:A,MATCH(LARGE(C:C,ROW(1:1)),C:C,0))
The value of column a corresponding to the maximum value in column C can be obtained
Pull down and you'll get the second, third... Big ones