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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 1 |
| 4 | 315 |
| 5 | 26 |
| 6 | 1 |
| 7 | 45682 |
| 8 | 2600 |
| 9 | 63 |
| 10 | 1 |
| 11 | 15646589 |
| 12 | 675194 |
| 13 | 11655 |
| 14 | 124 |
| 15 | 1 |
| 16 | 10567689552 |
| 17 | 366349152 |
| 18 | 4861458 |
| 19 | 37944 |
| 20 | 215 |
| 21 | 1 |
| 22 | 12503979423607 |
| 23 | 361884843866 |
| 24 | 3882676581 |
| 25 | 23641468 |
| 26 | 100835 |
| 27 | 342 |
| 28 | 1 |
| 29 | 23841011541867520 |
| 30 | 591934698991168 |
| 31 | 5318920238688 |
[1,7,1,315,26,1,45682,2600,63,1,15646589,675194, 11655,124,1,10567689552,366349152,4861458,37944, 215,1,12503979423607,361884843866,3882676581, 23641468,100835,342,1,23841011541867520, 591934698991168,5318920238688] |