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| n | a(n) |
|---|---|
| 1 | 22 |
| 2 | 158 |
| 3 | 648 |
| 4 | 2017 |
| 5 | 5246 |
| 6 | 11990 |
| 7 | 24842 |
| 8 | 47643 |
| 9 | 85838 |
| 10 | 146878 |
| 11 | 240668 |
| 12 | 380061 |
| 13 | 581398 |
| 14 | 865094 |
| 15 | 1256270 |
| 16 | 1785431 |
| 17 | 2489190 |
| 18 | 3411038 |
| 19 | 4602160 |
| 20 | 6122297 |
| 21 | 8040654 |
| 22 | 10436854 |
| 23 | 13401938 |
| 24 | 17039411 |
| 25 | 21466334 |
| 26 | 26814462 |
| 27 | 33231428 |
| 28 | 40881973 |
| 29 | 49949222 |
[22,158,648,2017,5246,11990,24842,47643,85838, 146878,240668,380061,581398,865094,1256270, 1785431,2489190,3411038,4602160,6122297,8040654, 10436854,13401938,17039411,21466334,26814462, 33231428,40881973,49949222] |