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| n | a(n) |
|---|---|
| 3 | 0 |
| 4 | 93 |
| 5 | 2046 |
| 6 | 8675 |
| 7 | 24622 |
| 8 | 56389 |
| 9 | 112078 |
| 10 | 201457 |
| 11 | 335974 |
| 12 | 528757 |
| 13 | 794614 |
| 14 | 1150033 |
| 15 | 1613182 |
| 16 | 2203909 |
| 17 | 2943742 |
| 18 | 3855889 |
| 19 | 4965238 |
| 20 | 6298357 |
| 21 | 7883494 |
| 22 | 9750577 |
| 23 | 11931214 |
| 24 | 14458693 |
| 25 | 17367982 |
| 26 | 20695729 |
| 27 | 24480262 |
[0,93,2046,8675,24622,56389,112078,201457,335974, 528757,794614,1150033,1613182,2203909,2943742, 3855889,4965238,6298357,7883494,9750577,11931214, 14458693,17367982,20695729,24480262] |