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| n | a(n) |
|---|---|
| 1 | 64 |
| 2 | 432 |
| 3 | 221 |
| 4 | 1586 |
| 5 | 2829 |
| 6 | 11733 |
| 7 | 15478 |
| 8 | 67090 |
| 9 | 96021 |
| 10 | 421513 |
| 11 | 602782 |
| 12 | 2643954 |
| 13 | 3889941 |
| 14 | 16782803 |
| 15 | 25276003 |
| 16 | 107138822 |
| 17 | 165904207 |
| 18 | 687475380 |
| 19 | 1094543281 |
| 20 | 4429929579 |
| 21 | 7252222651 |
| 22 | 28636327781 |
| 23 | 48176515537 |
| 24 | 185618761437 |
| 25 | 320587474583 |
[64,432,221,1586,2829,11733,15478,67090,96021, 421513,602782,2643954,3889941,16782803,25276003, 107138822,165904207,687475380,1094543281, 4429929579,7252222651,28636327781,48176515537, 185618761437,320587474583] |