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| n | a(n) |
|---|---|
| 1 | 4006 |
| 2 | 6786 |
| 3 | 10790 |
| 4 | 21090 |
| 5 | 38182 |
| 6 | 83394 |
| 7 | 168998 |
| 8 | 400674 |
| 9 | 889126 |
| 10 | 2238786 |
| 11 | 5323430 |
| 12 | 14015010 |
| 13 | 35074342 |
| 14 | 95480514 |
| 15 | 248156198 |
| 16 | 692867874 |
| 17 | 1852387366 |
| 18 | 5272270146 |
| 19 | 14401045670 |
| 20 | 41585674530 |
| 21 | 115480062502 |
| 22 | 337084349634 |
| 23 | 948148162598 |
[4006,6786,10790,21090,38182,83394,168998,400674, 889126,2238786,5323430,14015010,35074342,95480514, 248156198,692867874,1852387366,5272270146, 14401045670,41585674530,115480062502,337084349634, 948148162598] |