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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 12 |
| 2 | 1947 |
| 3 | 945360 |
| 4 | 952279230 |
| 5 | 1665456655065 |
| 6 | 4546140251381410 |
| 7 | 18036839485026245312 |
| 8 | 98828821396412329832181 |
| 9 | 719565439198091448998634599 |
| 10 | 6755047194370225050422094037182 |
| 11 | 79804922388776170830478631955052404 |
| 12 | 1163101849742231572210960509481022794738 |
| 13 | 20565795904976685513209147957073892094206920 |
| 14 | 434964979224032851486461932786665860631628717100 |
| 15 | 10870355119499979196080422944546745278774481226306000 |
[1,12,1947,945360,952279230,1665456655065, 4546140251381410,18036839485026245312, 98828821396412329832181, 719565439198091448998634599, 6755047194370225050422094037182, 79804922388776170830478631955052404, 1163101849742231572210960509481022794738, 20565795904976685513209147957073892094206920, 434964979224032851486461932786665860631628717100, 10870355119499979196080422944546745278774481226306\ 000] |