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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 121 |
| 3 | 400 |
| 4 | 961 |
| 5 | 116281 |
| 6 | 2989441 |
| 7 | 7958041 |
| 8 | 361722361 |
| 9 | 962922961 |
| 10 | 1902442689 |
| 11 | 1891467081 |
| 12 | 5168743489 |
| 13 | 4755619521 |
| 14 | 5215583961 |
| 15 | 6835486329 |
| 16 | 7496615889 |
| 17 | 13884144561 |
| 18 | 13884144561 |
| 19 | 35018011161 |
| 20 | 120776405841 |
| 21 | 120776405841 |
| 22 | 230195565369 |
| 23 | 253358202409 |
| 24 | 171651947481 |
[1,121,400,961,116281,2989441,7958041,361722361, 962922961,1902442689,1891467081,5168743489, 4755619521,5215583961,6835486329,7496615889, 13884144561,13884144561,35018011161,120776405841, 120776405841,230195565369,253358202409, 171651947481] |