Negative 1.5.22.57 () find the rule and fill in the next number nothing

Negative 1.5.22.57 () find the rule and fill in the next number nothing

one hundred and sixteen
1=1*1
5=1*5
22=2*11
57=3*19
116=4*29
5-1=4
11-5=6
19-11=8
29-19=10