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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 6 |
| 4 | 720 |
| 5 | 12 |
| 6 | 3360 |
| 7 | 18 |
| 8 | 9240 |
| 9 | 11793600 |
| 10 | 30 |
| 11 | 45239040 |
| 12 | 59280 |
| 13 | 42 |
| 14 | 91080 |
| 15 | 311875200 |
| 16 | 549853920 |
| 17 | 60 |
| 18 | 1072431360 |
| 19 | 328440 |
| 20 | 72 |
| 21 | 2533330800 |
| 22 | 531360 |
| 23 | 4701090240 |
| 24 | 60072730099200 |
| 25 | 970200 |
| 26 | 102 |
| 27 | 1157520 |
| 28 | 108 |
| 29 | 1367520 |
| 30 | 1063186156509747740870400000 |
| 31 | 2146560 |
| 32 | 43191973440 |
[1,4,6,720,12,3360,18,9240,11793600,30,45239040, 59280,42,91080,311875200,549853920,60,1072431360, 328440,72,2533330800,531360,4701090240, 60072730099200,970200,102,1157520,108,1367520, 1063186156509747740870400000,2146560,43191973440] |