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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 67 |
| 10 | 117 |
| 11 | 1095 |
| 12 | 2187 |
| 13 | 29205 |
| 14 | 68767 |
| 15 | 1031073 |
| 16 | 2764619 |
| 17 | 85636311 |
| 18 | 266613411 |
| 19 | 21897961453 |
| 20 | 82048784245 |
| 21 | 8655557801397 |
| 22 | 38233019016289 |
| 23 | 6409762412312631 |
| 24 | 33363306208522245 |
| 25 | 7840172339778301363 |
[1,1,1,1,1,1,1,1,67,117,1095,2187,29205,68767, 1031073,2764619,85636311,266613411,21897961453, 82048784245,8655557801397,38233019016289, 6409762412312631,33363306208522245, 7840172339778301363] |