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A289950 as a simple table
| n | a(n) |
|---|---|
| 4 | 3 |
| 5 | 35 |
| 6 | 295 |
| 7 | 2359 |
| 8 | 19670 |
| 9 | 177078 |
| 10 | 1738326 |
| 11 | 18607446 |
| 12 | 216400569 |
| 13 | 2721632121 |
| 14 | 36842898989 |
| 15 | 534442231933 |
| 16 | 8273657327788 |
| 17 | 136186274940140 |
| 18 | 2375469940958988 |
| 19 | 43774887758841996 |
| 20 | 849887136894382191 |
| 21 | 17340752094929572431 |
| 22 | 370979946172969657107 |
| 23 | 8304215235537338992931 |
[3,35,295,2359,19670,177078,1738326,18607446, 216400569,2721632121,36842898989,534442231933, 8273657327788,136186274940140,2375469940958988, 43774887758841996,849887136894382191, 17340752094929572431,370979946172969657107, 8304215235537338992931] |