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| n | a(n) |
|---|---|
| 19 | 256 |
| 20 | 1344 |
| 21 | 5376 |
| 22 | 19028 |
| 23 | 61808 |
| 24 | 188474 |
| 25 | 547350 |
| 26 | 1522758 |
| 27 | 4083256 |
| 28 | 10620590 |
| 29 | 26912658 |
| 30 | 66671138 |
| 31 | 161950112 |
| 32 | 386663750 |
| 33 | 909204980 |
| 34 | 2109158718 |
| 35 | 4834062186 |
| 36 | 10960141396 |
| 37 | 24608994426 |
| 38 | 54771900982 |
| 39 | 120939714274 |
| 40 | 265121486866 |
| 41 | 577386711942 |
| 42 | 1249925021562 |
| 43 | 2691031388142 |
[256,1344,5376,19028,61808,188474,547350,1522758, 4083256,10620590,26912658,66671138,161950112, 386663750,909204980,2109158718,4834062186, 10960141396,24608994426,54771900982,120939714274, 265121486866,577386711942,1249925021562, 2691031388142] |