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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 6 |
| 3 | 45 |
| 4 | 329 |
| 5 | 2803 |
| 6 | 21787 |
| 7 | 164346 |
| 8 | 1261122 |
| 9 | 9663349 |
| 10 | 74049013 |
| 11 | 567238607 |
| 12 | 4346212139 |
| 13 | 33299808638 |
| 14 | 255138546287 |
| 15 | 1954832187142 |
| 16 | 14977691730085 |
| 17 | 114757139031139 |
| 18 | 879254888227678 |
| 19 | 6736741952342134 |
| 20 | 51616087950953069 |
[8,6,45,329,2803,21787,164346,1261122,9663349, 74049013,567238607,4346212139,33299808638, 255138546287,1954832187142,14977691730085, 114757139031139,879254888227678,6736741952342134, 51616087950953069] |