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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 12 |
| 5 | 17 |
| 6 | 46 |
| 7 | 247 |
| 8 | 293 |
| 9 | 1126 |
| 10 | 1419 |
| 11 | 29506 |
| 12 | 30925 |
| 13 | 122281 |
| 14 | 153206 |
| 15 | 888311 |
| 16 | 1929828 |
| 17 | 2818139 |
| 18 | 7566106 |
| 19 | 17950351 |
| 20 | 25516457 |
| 21 | 43466808 |
| 22 | 1851122393 |
| 23 | 1894589201 |
| 24 | 3745711594 |
| 25 | 9386012389 |
| 26 | 22517736372 |
| 27 | 31903748761 |
| 28 | 86325233894 |
| 29 | 463529918231 |
[1,1,2,5,12,17,46,247,293,1126,1419,29506,30925, 122281,153206,888311,1929828,2818139,7566106, 17950351,25516457,43466808,1851122393,1894589201, 3745711594,9386012389,22517736372,31903748761, 86325233894,463529918231] |