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| n | a(n) |
|---|---|
| 0 | 126 |
| 1 | 2772 |
| 2 | 48048 |
| 3 | 772200 |
| 4 | 12033450 |
| 5 | 184940756 |
| 6 | 2824549728 |
| 7 | 43028530272 |
| 8 | 655081791000 |
| 9 | 9977399586000 |
| 10 | 152112583402560 |
| 11 | 2322021633001200 |
| 12 | 35496198345658050 |
| 13 | 543418421128852500 |
| 14 | 8331507823355640000 |
| 15 | 127919340117331963200 |
| 16 | 1966759854303978934200 |
| 17 | 30279186980267369086800 |
[126,2772,48048,772200,12033450,184940756, 2824549728,43028530272,655081791000,9977399586000, 152112583402560,2322021633001200, 35496198345658050,543418421128852500, 8331507823355640000,127919340117331963200, 1966759854303978934200,30279186980267369086800] |