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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 3 |
| 4 | 61 |
| 5 | 5 |
| 6 | 0 |
| 7 | 7 |
| 8 | 61277761 |
| 9 | 0 |
| 10 | 0 |
| 11 | 11 |
| 12 | 0 |
| 13 | 31 |
| 14 | 41 |
| 15 | 0 |
| 16 | 61 |
| 17 | 71 |
| 18 | 0 |
| 19 | 163 |
| 20 | 2 |
| 21 | 0 |
| 22 | 0 |
| 23 | 18258901387 |
| 24 | 0 |
| 25 | 5265674839116110941 |
| 26 | 6716872795737314976899264656807717363719079328404119318887571869813 |
| 27 | 0 |
[0,2,3,61,5,0,7,61277761,0,0,11,0,31,41,0,61,71,0, 163,2,0,0,18258901387,0,5265674839116110941, 67168727957373149768992646568077173637190793284041\ 19318887571869813,0] |