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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 3 |
| 4 | 4 |
| 5 | 24 |
| 6 | 9 |
| 7 | 28 |
| 8 | 252 |
| 9 | 189 |
| 10 | 27 |
| 11 | 280 |
| 12 | 3360 |
| 13 | 3780 |
| 14 | 1080 |
| 15 | 81 |
| 16 | 3640 |
| 17 | 54600 |
| 18 | 81900 |
| 19 | 35100 |
| 20 | 5265 |
| 21 | 243 |
| 22 | 1106560 |
| 23 | 4979520 |
| 24 | 5335200 |
| 25 | 2134080 |
| 26 | 369360 |
| 27 | 27702 |
| 28 | 729 |
| 29 | 24344320 |
| 30 | 127807680 |
| 31 | 164324160 |
| 32 | 82162080 |
| 33 | 18960480 |
| 34 | 2133054 |
| 35 | 112266 |
| 36 | 2187 |
| 37 | 608608000 |
[1,4,3,4,24,9,28,252,189,27,280,3360,3780,1080,81, 3640,54600,81900,35100,5265,243,1106560,4979520, 5335200,2134080,369360,27702,729,24344320, 127807680,164324160,82162080,18960480,2133054, 112266,2187,608608000] |