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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 13 |
| 3 | 397 |
| 4 | 4453 |
| 5 | 24649 |
| 6 | 12478897 |
| 7 | 47378857957 |
| 8 | 11289999097969 |
| 9 | 1143069714638779 |
| 10 | 1293273763150662781 |
| 11 | 15203530875840895739 |
| 12 | 46398798213229213203983 |
| 13 | 209490216975221386279672393 |
| 14 | 157153880464155360205476452597 |
[1,1,13,397,4453,24649,12478897,47378857957, 11289999097969,1143069714638779, 1293273763150662781,15203530875840895739, 46398798213229213203983, 209490216975221386279672393, 157153880464155360205476452597] |