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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 14 |
| 3 | 134 |
| 4 | 1482 |
| 5 | 17818 |
| 6 | 226214 |
| 7 | 2984206 |
| 8 | 40503890 |
| 9 | 561957362 |
| 10 | 7934063678 |
| 11 | 113622696470 |
| 12 | 1646501710362 |
| 13 | 24098174350986 |
| 14 | 355715715691350 |
| 15 | 5289547733908510 |
| 16 | 79163575684710818 |
| 17 | 1191491384838325474 |
[1,2,14,134,1482,17818,226214,2984206,40503890, 561957362,7934063678,113622696470,1646501710362, 24098174350986,355715715691350,5289547733908510, 79163575684710818,1191491384838325474] |