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| n | a(n) |
|---|---|
| 1 | 422 |
| 2 | 31104 |
| 3 | 1365524 |
| 4 | 19188990 |
| 5 | 171561694 |
| 6 | 1195936390 |
| 7 | 6483080144 |
| 8 | 28086995286 |
| 9 | 111475346884 |
| 10 | 380335170960 |
| 11 | 1167836929374 |
| 12 | 3332406055028 |
| 13 | 8765941903238 |
| 14 | 21457348698458 |
| 15 | 50079468971542 |
| 16 | 110467990168082 |
| 17 | 232510958777794 |
[422,31104,1365524,19188990,171561694,1195936390, 6483080144,28086995286,111475346884,380335170960, 1167836929374,3332406055028,8765941903238, 21457348698458,50079468971542,110467990168082, 232510958777794] |