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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 9 |
| 3 | 51 |
| 4 | 795 |
| 5 | 43923 |
| 6 | 10372323 |
| 7 | 11996843043 |
| 8 | 75315947454723 |
| 9 | 2788806652875290883 |
| 10 | 654625444656522114316803 |
| 11 | 1045012738906587147509753740803 |
| 12 | 12046169853230117709495421609499289603 |
| 13 | 1053916215003128938522329980606467994425804803 |
[1,3,9,51,795,43923,10372323,11996843043, 75315947454723,2788806652875290883, 654625444656522114316803, 1045012738906587147509753740803, 12046169853230117709495421609499289603, 1053916215003128938522329980606467994425804803] |