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| n | a(n) |
|---|---|
| 1 | 76 |
| 2 | 140 |
| 3 | 444 |
| 4 | 1692 |
| 5 | 3948 |
| 6 | 13894 |
| 7 | 35270 |
| 8 | 122820 |
| 9 | 328174 |
| 10 | 1091770 |
| 11 | 2989514 |
| 12 | 9789230 |
| 13 | 27386704 |
| 14 | 88043136 |
| 15 | 249821778 |
| 16 | 792963658 |
| 17 | 2277817920 |
| 18 | 7153114096 |
| 19 | 20739269674 |
| 20 | 64581466696 |
| 21 | 188672537578 |
| 22 | 583564854384 |
| 23 | 1715136004208 |
| 24 | 5276315756596 |
[76,140,444,1692,3948,13894,35270,122820,328174, 1091770,2989514,9789230,27386704,88043136, 249821778,792963658,2277817920,7153114096, 20739269674,64581466696,188672537578,583564854384, 1715136004208,5276315756596] |