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A060538 as a simple table
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 1 |
| 5 | 6 |
| 6 | 6 |
| 7 | 1 |
| 8 | 20 |
| 9 | 90 |
| 10 | 24 |
| 11 | 1 |
| 12 | 70 |
| 13 | 1680 |
| 14 | 2520 |
| 15 | 120 |
| 16 | 1 |
| 17 | 252 |
| 18 | 34650 |
| 19 | 369600 |
| 20 | 113400 |
| 21 | 720 |
| 22 | 1 |
| 23 | 924 |
| 24 | 756756 |
| 25 | 63063000 |
| 26 | 168168000 |
| 27 | 7484400 |
| 28 | 5040 |
| 29 | 1 |
| 30 | 3432 |
| 31 | 17153136 |
| 32 | 11732745024 |
| 33 | 305540235000 |
| 34 | 137225088000 |
| 35 | 681080400 |
| 36 | 40320 |
| 37 | 1 |
| 38 | 12870 |
[1,1,2,1,6,6,1,20,90,24,1,70,1680,2520,120,1,252, 34650,369600,113400,720,1,924,756756,63063000, 168168000,7484400,5040,1,3432,17153136, 11732745024,305540235000,137225088000,681080400, 40320,1,12870] |