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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 5 |
| 3 | 31 |
| 4 | 31 |
| 5 | 619 |
| 6 | 619 |
| 7 | 5779 |
| 8 | 5779 |
| 9 | 69341 |
| 10 | 69341 |
| 11 | 3051179 |
| 12 | 3051179 |
| 13 | 52884569 |
| 14 | 52884569 |
| 15 | 634649863 |
| 16 | 634649863 |
| 17 | 43152570067 |
| 18 | 43152570067 |
| 19 | 1093376176159 |
| 20 | 1093376176159 |
| 21 | 2623076354557 |
| 22 | 2623076354557 |
| 23 | 241599308325943 |
| 24 | 241599308325943 |
| 25 | 1604223576455477 |
[0,1,5,31,31,619,619,5779,5779,69341,69341, 3051179,3051179,52884569,52884569,634649863, 634649863,43152570067,43152570067,1093376176159, 1093376176159,2623076354557,2623076354557, 241599308325943,241599308325943,1604223576455477] |