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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 7 |
| 3 | 93 |
| 4 | 2159 |
| 5 | 15841 |
| 6 | 6141 |
| 7 | 44731051 |
| 8 | 8421119 |
| 9 | 86113647 |
| 10 | 3331843885 |
| 11 | 127479517837 |
| 12 | 103104368637 |
| 13 | 750599904340651 |
| 14 | 82824819807611 |
| 15 | 80500035008073 |
| 16 | 36170086393773823 |
| 17 | 49191317521302203051 |
| 18 | 2460603943675971 |
| 19 | 12592977287514948283051 |
| 20 | 89351501819019263845 |
[0,1,7,93,2159,15841,6141,44731051,8421119, 86113647,3331843885,127479517837,103104368637, 750599904340651,82824819807611,80500035008073, 36170086393773823,49191317521302203051, 2460603943675971,12592977287514948283051, 89351501819019263845] |