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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 29 |
| 2 | 275 |
| 3 | 1498 |
| 4 | 5846 |
| 5 | 18250 |
| 6 | 48546 |
| 7 | 114480 |
| 8 | 245751 |
| 9 | 489247 |
| 10 | 915629 |
| 11 | 1627418 |
| 12 | 2768740 |
| 13 | 4536884 |
| 14 | 7195828 |
| 15 | 11091888 |
| 16 | 16671645 |
| 17 | 24502305 |
| 18 | 35294647 |
| 19 | 49928714 |
| 20 | 69482402 |
| 21 | 95263102 |
| 22 | 128842550 |
| 23 | 172095040 |
| 24 | 227239155 |
| 25 | 296883171 |
| 26 | 384074289 |
[1,29,275,1498,5846,18250,48546,114480,245751, 489247,915629,1627418,2768740,4536884,7195828, 11091888,16671645,24502305,35294647,49928714, 69482402,95263102,128842550,172095040,227239155, 296883171,384074289] |