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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 63 |
| 10 | 111 |
| 11 | 801 |
| 12 | 1619 |
| 13 | 12671 |
| 14 | 27823 |
| 15 | 349917 |
| 16 | 870983 |
| 17 | 40498015 |
| 18 | 122215163 |
| 19 | 11398125347 |
| 20 | 41676149367 |
| 21 | 3782723396203 |
| 22 | 16295789305103 |
| 23 | 1930244576207107 |
| 24 | 9658343102457355 |
[1,1,1,1,1,1,1,1,63,111,801,1619,12671,27823, 349917,870983,40498015,122215163,11398125347, 41676149367,3782723396203,16295789305103, 1930244576207107,9658343102457355] |