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| n | a(n) |
|---|---|
| 1 | 126 |
| 2 | 1792 |
| 3 | 14336 |
| 4 | 67452 |
| 5 | 242494 |
| 6 | 714980 |
| 7 | 1826748 |
| 8 | 4173442 |
| 9 | 8762390 |
| 10 | 17110282 |
| 11 | 31597020 |
| 12 | 55472158 |
| 13 | 93560894 |
| 14 | 152043682 |
| 15 | 239777076 |
| 16 | 367458644 |
| 17 | 550136314 |
| 18 | 805205100 |
| 19 | 1156638980 |
| 20 | 1631284144 |
| 21 | 2265657954 |
| 22 | 3099326244 |
| 23 | 4185802572 |
[126,1792,14336,67452,242494,714980,1826748, 4173442,8762390,17110282,31597020,55472158, 93560894,152043682,239777076,367458644,550136314, 805205100,1156638980,1631284144,2265657954, 3099326244,4185802572] |