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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 9 |
| 4 | 63 |
| 5 | 7 |
| 6 | 77 |
| 7 | 539 |
| 8 | 2695 |
| 9 | 24255 |
| 10 | 92169 |
| 11 | 48279 |
| 12 | 370139 |
| 13 | 370139 |
| 14 | 1427679 |
| 15 | 4283037 |
| 16 | 132774147 |
| 17 | 4023459 |
| 18 | 3129357 |
| 19 | 59457783 |
| 20 | 2318853537 |
| 21 | 48695924277 |
| 22 | 190356794901 |
| 23 | 486467364747 |
| 24 | 7621322047703 |
| 25 | 155537184647 |
| 26 | 610184339769 |
[1,2,3,9,63,7,77,539,2695,24255,92169,48279, 370139,370139,1427679,4283037,132774147,4023459, 3129357,59457783,2318853537,48695924277, 190356794901,486467364747,7621322047703, 155537184647,610184339769] |