The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 3 | 3 |
| 4 | 2 |
| 5 | 14 |
| 6 | 26 |
| 7 | 55 |
| 8 | 30 |
| 9 | 56 |
| 10 | 329 |
| 11 | 626 |
| 12 | 366 |
| 13 | 340 |
| 14 | 558 |
| 15 | 288 |
| 16 | 552 |
| 17 | 828 |
| 18 | 3496 |
| 19 | 6928 |
| 20 | 2430 |
| 21 | 81809 |
| 22 | 3920 |
| 23 | 3432 |
| 24 | 8680 |
| 25 | 48380 |
| 26 | 23430 |
| 27 | 2520 |
| 28 | 144020 |
| 29 | 435056 |
| 30 | 21384 |
| 31 | 728096 |
| 32 | 188376 |
| 33 | 11802175 |
| 34 | 97320 |
| 35 | 54057938 |
| 36 | 89700 |
| 37 | 349752 |
| 38 | 1143492 |
| 39 | 11286632 |
| 40 | 490752 |
[3,2,14,26,55,30,56,329,626,366,340,558,288,552, 828,3496,6928,2430,81809,3920,3432,8680,48380, 23430,2520,144020,435056,21384,728096,188376, 11802175,97320,54057938,89700,349752,1143492, 11286632,490752] |