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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 3 |
| 2 | 61 |
| 3 | 37 |
| 4 | 7321 |
| 5 | 13421 |
| 6 | 1117 |
| 7 | 1623931 |
| 8 | 6304673 |
| 9 | 590077 |
| 10 | 212601841 |
| 11 | 58367 |
| 12 | 20113 |
| 13 | 59583967 |
| 14 | 55527473 |
| 15 | 7537711 |
| 16 | 447600088289 |
| 17 | 2218331 |
| 18 | 3138426605161 |
| 19 | 1390636259 |
| 20 | 1120648576818041 |
| 21 | 3421169496361 |
| 22 | 2649263870814793 |
[2,3,61,37,7321,13421,1117,1623931,6304673,590077, 212601841,58367,20113,59583967,55527473,7537711, 447600088289,2218331,3138426605161,1390636259, 1120648576818041,3421169496361,2649263870814793] |