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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 4 |
| 4 | 203 |
| 5 | 207 |
| 6 | 617 |
| 7 | 824 |
| 8 | 41817 |
| 9 | 42641 |
| 10 | 127099 |
| 11 | 169740 |
| 12 | 8614099 |
| 13 | 8783839 |
| 14 | 26181777 |
| 15 | 34965616 |
| 16 | 1774462577 |
| 17 | 1809428193 |
| 18 | 5393318963 |
| 19 | 7202747156 |
| 20 | 365530676763 |
| 21 | 372733423919 |
| 22 | 1110997524601 |
| 23 | 1483730948520 |
| 24 | 75297544950601 |
| 25 | 76781275899121 |
[1,1,3,4,203,207,617,824,41817,42641,127099, 169740,8614099,8783839,26181777,34965616, 1774462577,1809428193,5393318963,7202747156, 365530676763,372733423919,1110997524601, 1483730948520,75297544950601,76781275899121] |