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| n | a(n) |
|---|---|
| 1 | 10 |
| 2 | 33 |
| 3 | 169 |
| 4 | 648 |
| 5 | 2179 |
| 6 | 7049 |
| 7 | 22017 |
| 8 | 65842 |
| 9 | 188487 |
| 10 | 519028 |
| 11 | 1381594 |
| 12 | 3567948 |
| 13 | 8961630 |
| 14 | 21932971 |
| 15 | 52387683 |
| 16 | 122289966 |
| 17 | 279347375 |
| 18 | 625196496 |
| 19 | 1372463293 |
| 20 | 2958423704 |
| 21 | 6267975073 |
| 22 | 13064759179 |
| 23 | 26813365624 |
| 24 | 54226962440 |
| 25 | 108144189873 |
[10,33,169,648,2179,7049,22017,65842,188487, 519028,1381594,3567948,8961630,21932971,52387683, 122289966,279347375,625196496,1372463293, 2958423704,6267975073,13064759179,26813365624, 54226962440,108144189873] |