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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 79 |
| 4 | 235 |
| 5 | 431 |
| 6 | 1503 |
| 7 | 2943 |
| 8 | 6059 |
| 9 | 6619 |
| 10 | 18911 |
| 11 | 54223 |
| 12 | 302467995 |
| 13 | 1772665631 |
| 14 | 2148845167 |
| 15 | 5145362667 |
| 16 | 129465909327 |
| 17 | 212089391807 |
[1,3,79,235,431,1503,2943,6059,6619,18911,54223, 302467995,1772665631,2148845167,5145362667, 129465909327,212089391807] |