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| n | a(n) |
|---|---|
| 3 | 0 |
| 4 | 5 |
| 5 | 23 |
| 6 | 62 |
| 7 | 62 |
| 8 | 723 |
| 9 | 1578 |
| 10 | 1578 |
| 11 | 8139 |
| 12 | 39644 |
| 13 | 94323 |
| 14 | 94323 |
| 15 | 1317783 |
| 16 | 1680515 |
| 17 | 2025699 |
| 18 | 3205598 |
| 19 | 23003999 |
| 20 | 113333163 |
| 21 | 170717819 |
| 22 | 1710518799 |
| 23 | 3608109348 |
| 24 | 16655876439 |
| 25 | 24090452279 |
[0,5,23,62,62,723,1578,1578,8139,39644,94323, 94323,1317783,1680515,2025699,3205598,23003999, 113333163,170717819,1710518799,3608109348, 16655876439,24090452279] |