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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 6 |
| 4 | 4 |
| 5 | 12 |
| 6 | 22 |
| 7 | 5 |
| 8 | 20 |
| 9 | 93 |
| 10 | 278 |
| 11 | 6 |
| 12 | 30 |
| 13 | 276 |
| 14 | 6654 |
| 15 | 65814 |
| 16 | 7 |
| 17 | 42 |
| 18 | 655 |
| 19 | 65812 |
| 20 | 43053375 |
| 21 | 4295033110 |
| 22 | 8 |
| 23 | 56 |
| 24 | 1338 |
| 25 | 391280 |
| 26 | 4295033108 |
| 27 | 1853020231905216 |
| 28 | 18446744078004584726 |
| 29 | 9 |
| 30 | 72 |
| 31 | 2457 |
| 32 | 1680954 |
| 33 | 152588281905 |
[2,3,6,4,12,22,5,20,93,278,6,30,276,6654,65814,7, 42,655,65812,43053375,4295033110,8,56,1338,391280, 4295033108,1853020231905216,18446744078004584726, 9,72,2457,1680954,152588281905] |