n | a(n) |
---|---|
1 | 0 |
2 | 4095 |
3 | 531440 |
4 | 16777215 |
5 | 244140624 |
6 | 2176782335 |
7 | 13841287200 |
8 | 68719476735 |
9 | 282429536480 |
10 | 999999999999 |
11 | 3138428376720 |
12 | 8916100448255 |
13 | 23298085122480 |
14 | 56693912375295 |
15 | 129746337890624 |
16 | 281474976710655 |
17 | 582622237229760 |
18 | 1156831381426175 |
19 | 2213314919066160 |
[0,4095,531440,16777215,244140624,2176782335, 13841287200,68719476735,282429536480,999999999999, 3138428376720,8916100448255,23298085122480, 56693912375295,129746337890624,281474976710655, 582622237229760,1156831381426175,2213314919066160] |