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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 9 |
| 4 | 79 |
| 5 | 1702 |
| 6 | 78353 |
| 7 | 7559080 |
| 8 | 1509040932 |
| 9 | 619097417818 |
| 10 | 519429629728698 |
| 11 | 887531129680197018 |
| 12 | 3078434842626707386602 |
| 13 | 21627792113204714623569767 |
| 14 | 307257554772242590850211062866 |
| 15 | 8813577747274880345454470354985336 |
| 16 | 509819403352972623999938010230619997952 |
[1,1,2,9,79,1702,78353,7559080,1509040932, 619097417818,519429629728698,887531129680197018, 3078434842626707386602,21627792113204714623569767, 307257554772242590850211062866, 8813577747274880345454470354985336, 509819403352972623999938010230619997952] |