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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 36 |
| 3 | 211 |
| 4 | 1235 |
| 5 | 7250 |
| 6 | 42317 |
| 7 | 245724 |
| 8 | 1434390 |
| 9 | 8335997 |
| 10 | 48454798 |
| 11 | 281866663 |
| 12 | 1636091940 |
| 13 | 9491058267 |
| 14 | 55269961550 |
| 15 | 320329432031 |
[6,36,211,1235,7250,42317,245724,1434390,8335997, 48454798,281866663,1636091940,9491058267, 55269961550,320329432031] |