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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 25 |
| 3 | 2317 |
| 4 | 466241 |
| 5 | 162016980 |
| 6 | 85975473871 |
| 7 | 64545532370208 |
| 8 | 65062315637060121 |
| 9 | 84756897268784533255 |
| 10 | 138581022247955235150982 |
| 11 | 277878562828788369685779910 |
| 12 | 670574499099019193091230751539 |
| 13 | 1917288315895234006935990419270242 |
| 14 | 6409780596355519454337664637246378856 |
| 15 | 24774712941456386970945752104780461007848 |
| 16 | 109632095120643795798521114315908854415860345 |
[1,1,25,2317,466241,162016980,85975473871, 64545532370208,65062315637060121, 84756897268784533255,138581022247955235150982, 277878562828788369685779910, 670574499099019193091230751539, 1917288315895234006935990419270242, 6409780596355519454337664637246378856, 24774712941456386970945752104780461007848, 109632095120643795798521114315908854415860345] |