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| n | a(n) |
|---|---|
| 1 | 128 |
| 2 | 1375 |
| 3 | 10238 |
| 4 | 62347 |
| 5 | 331561 |
| 6 | 1595475 |
| 7 | 7102354 |
| 8 | 29688844 |
| 9 | 117789230 |
| 10 | 447095308 |
| 11 | 1633583432 |
| 12 | 5773429726 |
| 13 | 19814156786 |
| 14 | 66246078602 |
| 15 | 216345953850 |
| 16 | 691705334522 |
| 17 | 2169266885114 |
| 18 | 6684119486458 |
| 19 | 20264694041594 |
| 20 | 60526805714938 |
| 21 | 178299235266554 |
| 22 | 518528519151610 |
| 23 | 1490041038438394 |
| 24 | 4234162281971706 |
| 25 | 11906594366685178 |
[128,1375,10238,62347,331561,1595475,7102354, 29688844,117789230,447095308,1633583432, 5773429726,19814156786,66246078602,216345953850, 691705334522,2169266885114,6684119486458, 20264694041594,60526805714938,178299235266554, 518528519151610,1490041038438394,4234162281971706, 11906594366685178] |