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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 395 |
| 3 | 2258 |
| 4 | 11177 |
| 5 | 39066 |
| 6 | 115437 |
| 7 | 532834 |
| 8 | 1837087 |
| 9 | 5062910 |
| 10 | 12147433 |
| 11 | 25806556 |
| 12 | 50739417 |
| 13 | 92614678 |
| 14 | 187232361 |
| 15 | 350034382 |
| 16 | 617715207 |
| 17 | 1030388992 |
| 18 | 1650959847 |
| 19 | 2538262186 |
| 20 | 3782707737 |
| 21 | 5833734570 |
| 22 | 8712114313 |
| 23 | 12641601904 |
[2,395,2258,11177,39066,115437,532834,1837087, 5062910,12147433,25806556,50739417,92614678, 187232361,350034382,617715207,1030388992, 1650959847,2538262186,3782707737,5833734570, 8712114313,12641601904] |