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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 4 |
| 4 | 4 |
| 5 | 5 |
| 6 | 5 |
| 7 | 5 |
| 8 | 6 |
| 9 | 47 |
| 10 | 109 |
| 11 | 935 |
| 12 | 4763 |
| 13 | 7821 |
| 14 | 8895 |
| 15 | 9889 |
| 16 | 35798 |
| 17 | 44347 |
| 18 | 1146551 |
| 19 | 7874944 |
| 20 | 8043393 |
| 21 | 27403243 |
| 22 | 34058912 |
| 23 | 58098040 |
| 24 | 68760470 |
| 25 | 80046897 |
| 26 | 560099631 |
| 27 | 611427977 |
| 28 | 14235032003 |
| 29 | 602865059026 |
| 30 | 813485869378 |
[1,3,4,4,5,5,5,6,47,109,935,4763,7821,8895,9889, 35798,44347,1146551,7874944,8043393,27403243, 34058912,58098040,68760470,80046897,560099631, 611427977,14235032003,602865059026,813485869378] |