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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 8 |
| 4 | 112 |
| 5 | 424 |
| 6 | 595 |
| 7 | 1997 |
| 8 | 2336 |
| 9 | 2455 |
| 10 | 33265 |
| 11 | 2475701 |
| 12 | 9363208 |
| 13 | 15402464 |
[1,7,8,112,424,595,1997,2336,2455,33265,2475701, 9363208,15402464] |