n | a(n) |
---|---|
1 | 0 |
2 | 1023 |
3 | 59048 |
4 | 1048575 |
5 | 9765624 |
6 | 60466175 |
7 | 282475248 |
8 | 1073741823 |
9 | 3486784400 |
10 | 9999999999 |
11 | 25937424600 |
12 | 61917364223 |
13 | 137858491848 |
14 | 289254654975 |
15 | 576650390624 |
16 | 1099511627775 |
17 | 2015993900448 |
18 | 3570467226623 |
19 | 6131066257800 |
20 | 10239999999999 |
21 | 16679880978200 |
[0,1023,59048,1048575,9765624,60466175,282475248, 1073741823,3486784400,9999999999,25937424600, 61917364223,137858491848,289254654975, 576650390624,1099511627775,2015993900448, 3570467226623,6131066257800,10239999999999, 16679880978200] |