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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 59 |
| 4 | 275 |
| 5 | 1949 |
| 6 | 3971 |
| 7 | 20333 |
| 8 | 45705 |
| 9 | 120899 |
| 10 | 205233 |
| 11 | 629761 |
| 12 | 897707 |
| 13 | 2334291 |
| 14 | 3461329 |
| 15 | 5516985 |
| 16 | 8467899 |
[1,7,59,275,1949,3971,20333,45705,120899,205233, 629761,897707,2334291,3461329,5516985,8467899] |