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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 6 |
| 3 | 12 |
| 4 | 12 |
| 5 | 174600 |
| 6 | 7224840 |
| 7 | 10780560 |
| 8 | 10780560 |
| 9 | 1086338816640 |
| 10 | 50060257410240 |
| 11 | 7720634052774720 |
| 12 | 227457297898150320 |
| 13 | 7272877497848202240 |
| 14 | 7272877497848202240 |
[3,6,12,12,174600,7224840,10780560,10780560, 1086338816640,50060257410240,7720634052774720, 227457297898150320,7272877497848202240, 7272877497848202240] |