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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 81 |
| 3 | 100 |
| 4 | 330 |
| 5 | 1085 |
| 6 | 3602 |
| 7 | 12102 |
| 8 | 40901 |
| 9 | 138307 |
| 10 | 467309 |
| 11 | 1578541 |
| 12 | 5333233 |
| 13 | 18021770 |
| 14 | 60899601 |
| 15 | 205786949 |
| 16 | 695366607 |
| 17 | 2349691060 |
| 18 | 7939809084 |
| 19 | 26829343060 |
| 20 | 90658737265 |
| 21 | 306343718596 |
| 22 | 1035161871379 |
| 23 | 3497901910024 |
| 24 | 11819715442581 |
[8,81,100,330,1085,3602,12102,40901,138307,467309, 1578541,5333233,18021770,60899601,205786949, 695366607,2349691060,7939809084,26829343060, 90658737265,306343718596,1035161871379, 3497901910024,11819715442581] |