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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 8 |
| 3 | 38 |
| 4 | 195 |
| 5 | 1042 |
| 6 | 5710 |
| 7 | 31824 |
| 8 | 179534 |
| 9 | 1022108 |
| 10 | 5860360 |
| 11 | 33791804 |
| 12 | 195753023 |
| 13 | 1138357170 |
| 14 | 6641444190 |
| 15 | 38855909550 |
| 16 | 227876590746 |
| 17 | 1339240440244 |
| 18 | 7885425300976 |
| 19 | 46506012931244 |
| 20 | 274684745368371 |
| 21 | 1624564306735434 |
| 22 | 9619687284309090 |
| 23 | 57024174275993142 |
| 24 | 338368271349427938 |
[1,2,8,38,195,1042,5710,31824,179534,1022108, 5860360,33791804,195753023,1138357170,6641444190, 38855909550,227876590746,1339240440244, 7885425300976,46506012931244,274684745368371, 1624564306735434,9619687284309090, 57024174275993142,338368271349427938] |