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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 12 |
| 2 | 92 |
| 3 | 800 |
| 4 | 7554 |
| 5 | 75664 |
| 6 | 792448 |
| 7 | 8595120 |
| 8 | 95895816 |
| 9 | 1095130728 |
| 10 | 12753454896 |
| 11 | 151017596448 |
| 12 | 1814135701956 |
| 13 | 22067487234504 |
| 14 | 271407264938656 |
| 15 | 3370796862212944 |
| 16 | 42230992336570032 |
| 17 | 533252038221313888 |
| 18 | 6781213722509638192 |
| 19 | 86790636905453265216 |
[2,12,92,800,7554,75664,792448,8595120,95895816, 1095130728,12753454896,151017596448,1814135701956, 22067487234504,271407264938656,3370796862212944, 42230992336570032,533252038221313888, 6781213722509638192,86790636905453265216] |