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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 5 |
| 3 | 82 |
| 4 | 2729 |
| 5 | 151376 |
| 6 | 12567187 |
| 7 | 1457297878 |
| 8 | 224869459201 |
| 9 | 44538286061152 |
| 10 | 11011493721321251 |
| 11 | 3323602336722922574 |
| 12 | 1202633627172086804257 |
| 13 | 513869583003728865617848 |
| 14 | 255985770924976071728925555 |
| 15 | 147050140379016992236158750526 |
| 16 | 96489590122440823908683879560193 |
| 17 | 71722476615114676804476795900453248 |
| 18 | 59952692198711311645811325484552353091 |
| 19 | 55990325778560798795385664699772933184190 |
| 20 | 58081532846176563089250398770056580653829601 |
[1,1,5,82,2729,151376,12567187,1457297878, 224869459201,44538286061152,11011493721321251, 3323602336722922574,1202633627172086804257, 513869583003728865617848, 255985770924976071728925555, 147050140379016992236158750526, 96489590122440823908683879560193, 71722476615114676804476795900453248, 59952692198711311645811325484552353091, 55990325778560798795385664699772933184190, 58081532846176563089250398770056580653829601] |