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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 2 |
| 4 | 6 |
| 5 | 60 |
| 6 | 6 |
| 7 | 12 |
| 8 | 1058 |
| 9 | 1058 |
| 10 | 12 |
| 11 | 20 |
| 12 | 25080 |
| 13 | 140240 |
| 14 | 25080 |
| 15 | 20 |
| 16 | 30 |
| 17 | 822594 |
| 18 | 58673472 |
| 19 | 58673472 |
| 20 | 822594 |
| 21 | 30 |
| 22 | 42 |
| 23 | 36195620 |
| 24 | 28938943114 |
| 25 | 490225231968 |
| 26 | 28938943114 |
| 27 | 36195620 |
| 28 | 42 |
| 29 | 56 |
| 30 | 2069486450 |
[0,2,2,6,60,6,12,1058,1058,12,20,25080,140240, 25080,20,30,822594,58673472,58673472,822594,30,42, 36195620,28938943114,490225231968,28938943114, 36195620,42,56,2069486450] |