n | a(n) |
---|---|
1 | 3 |
2 | 23 |
3 | 56 |
4 | 461 |
5 | 2897 |
6 | 17967 |
7 | 116911 |
8 | 757146 |
9 | 4893755 |
10 | 31718101 |
11 | 205477601 |
12 | 1331145835 |
13 | 8624488786 |
14 | 55876739813 |
15 | 362017883823 |
16 | 2345474974395 |
17 | 15196064614313 |
18 | 98453588371088 |
19 | 637869800997933 |
20 | 4132686977034097 |
[3,23,56,461,2897,17967,116911,757146,4893755, 31718101,205477601,1331145835,8624488786, 55876739813,362017883823,2345474974395, 15196064614313,98453588371088,637869800997933, 4132686977034097] |