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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 1 |
| 6 | 12 |
| 7 | 1 |
| 8 | 43 |
| 9 | 132 |
| 10 | 547 |
| 11 | 1 |
| 12 | 7834 |
| 13 | 1 |
| 14 | 30442 |
| 15 | 608887 |
| 16 | 3834978 |
| 17 | 1 |
| 18 | 84536629 |
| 19 | 1 |
| 20 | 3030450058 |
| 21 | 79538220753 |
| 22 | 16701983083 |
| 23 | 1 |
| 24 | 4136127573912 |
| 25 | 26625599501697 |
| 26 | 2730194738935 |
[1,1,1,2,1,12,1,43,132,547,1,7834,1,30442,608887, 3834978,1,84536629,1,3030450058,79538220753, 16701983083,1,4136127573912,26625599501697, 2730194738935] |