n | a(n) |
---|---|
0 | 1 |
1 | 11 |
2 | 2047 |
3 | 88573 |
4 | 1398101 |
5 | 12207031 |
6 | 72559411 |
7 | 329554457 |
8 | 1227133513 |
9 | 3922632451 |
10 | 11111111111 |
11 | 28531167061 |
12 | 67546215517 |
13 | 149346699503 |
14 | 311505013051 |
15 | 617839704241 |
16 | 1172812402961 |
17 | 2141993519227 |
18 | 3780494710543 |
19 | 6471681049901 |
[1,11,2047,88573,1398101,12207031,72559411, 329554457,1227133513,3922632451,11111111111, 28531167061,67546215517,149346699503,311505013051, 617839704241,1172812402961,2141993519227, 3780494710543,6471681049901] |