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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 10 |
| 4 | 3 |
| 5 | 20 |
| 6 | 109 |
| 7 | 4 |
| 8 | 30 |
| 9 | 218 |
| 10 | 1189 |
| 11 | 5 |
| 12 | 43 |
| 13 | 327 |
| 14 | 2378 |
| 15 | 12970 |
| 16 | 6 |
| 17 | 53 |
| 18 | 469 |
| 19 | 3567 |
| 20 | 25940 |
| 21 | 141481 |
| 22 | 7 |
| 23 | 63 |
| 24 | 578 |
| 25 | 5116 |
| 26 | 38910 |
| 27 | 282962 |
| 28 | 1543321 |
| 29 | 8 |
| 30 | 76 |
| 31 | 687 |
| 32 | 6305 |
| 33 | 55807 |
| 34 | 424443 |
| 35 | 3086642 |
| 36 | 16835050 |
| 37 | 9 |
| 38 | 86 |
| 39 | 829 |
| 40 | 7494 |
| 41 | 68777 |
| 42 | 608761 |
| 43 | 4629963 |
| 44 | 33670100 |
| 45 | 183642229 |
[1,2,10,3,20,109,4,30,218,1189,5,43,327,2378, 12970,6,53,469,3567,25940,141481,7,63,578,5116, 38910,282962,1543321,8,76,687,6305,55807,424443, 3086642,16835050,9,86,829,7494,68777,608761, 4629963,33670100,183642229] |