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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 18 |
| 2 | 938 |
| 3 | 122066 |
| 4 | 29635154 |
| 5 | 11561687346 |
| 6 | 6615385296570 |
| 7 | 5218960553242866 |
| 8 | 5429404407724397474 |
| 9 | 7201623832416658882514 |
| 10 | 11862352305394237757311946 |
| 11 | 23755795427038939521773734290 |
[2,18,938,122066,29635154,11561687346, 6615385296570,5218960553242866, 5429404407724397474,7201623832416658882514, 11862352305394237757311946, 23755795427038939521773734290] |