n | a(n) |
---|---|
1 | 1 |
2 | 7 |
3 | 111 |
4 | 3367 |
5 | 7787 |
6 | 8517 |
7 | 9071 |
8 | 54079 |
9 | 54451 |
10 | 138657 |
11 | 262157 |
12 | 759461 |
13 | 857817 |
14 | 4662317 |
15 | 21754021 |
16 | 25400729 |
17 | 41171387 |
18 | 50304331 |
19 | 368119693 |
20 | 799245603 |
21 | 938577991 |
[1,7,111,3367,7787,8517,9071,54079,54451,138657, 262157,759461,857817,4662317,21754021,25400729, 41171387,50304331,368119693,799245603,938577991] |