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| n | a(n) |
|---|---|
| 1 | 36 |
| 2 | 144 |
| 3 | 3600 |
| 4 | 3600 |
| 5 | 28224 |
| 6 | 254016 |
| 7 | 129600 |
| 8 | 435600 |
| 9 | 1192464 |
| 10 | 16646400 |
| 11 | 5992704 |
| 12 | 11696400 |
| 13 | 36869184 |
| 14 | 60840000 |
| 15 | 96589584 |
| 16 | 148352400 |
| 17 | 221414400 |
| 18 | 1071645696 |
| 19 | 640494864 |
| 20 | 1186113600 |
| 21 | 1578631824 |
| 22 | 2692364544 |
[36,144,3600,3600,28224,254016,129600,435600, 1192464,16646400,5992704,11696400,36869184, 60840000,96589584,148352400,221414400,1071645696, 640494864,1186113600,1578631824,2692364544] |