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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 10 |
| 8 | 5 |
| 9 | 44 |
| 10 | 17 |
| 11 | 490 |
| 12 | 45 |
| 13 | 4847 |
| 14 | 317 |
| 15 | 94850 |
| 16 | 5736 |
| 17 | 2753328 |
| 18 | 99087 |
| 19 | 124970926 |
| 20 | 2137142 |
| 21 | 7708832169 |
| 22 | 81606063 |
| 23 | 748069343112 |
| 24 | 5341611544 |
| 25 | 110489144610789 |
| 26 | 471313494449 |
[1,1,1,1,1,1,10,5,44,17,490,45,4847,317,94850, 5736,2753328,99087,124970926,2137142,7708832169, 81606063,748069343112,5341611544,110489144610789, 471313494449] |