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| n | a(n) |
|---|---|
| 3 | 4 |
| 4 | 49 |
| 5 | 273 |
| 6 | 1023 |
| 7 | 3003 |
| 8 | 7462 |
| 9 | 16422 |
| 10 | 32946 |
| 11 | 61446 |
| 12 | 108031 |
| 13 | 180895 |
| 14 | 290745 |
| 15 | 451269 |
| 16 | 679644 |
| 17 | 997084 |
| 18 | 1429428 |
| 19 | 2007768 |
| 20 | 2769117 |
| 21 | 3757117 |
| 22 | 5022787 |
| 23 | 6625311 |
| 24 | 8632866 |
| 25 | 11123490 |
| 26 | 14185990 |
| 27 | 17920890 |
| 28 | 22441419 |
| 29 | 27874539 |
| 30 | 34362013 |
| 31 | 42061513 |
| 32 | 51147768 |
| 33 | 61813752 |
| 34 | 74271912 |
[4,49,273,1023,3003,7462,16422,32946,61446,108031, 180895,290745,451269,679644,997084,1429428, 2007768,2769117,3757117,5022787,6625311,8632866, 11123490,14185990,17920890,22441419,27874539, 34362013,42061513,51147768,61813752,74271912] |