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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 5 |
| 6 | 3 |
| 7 | 6 |
| 8 | 15 |
| 9 | 42 |
| 10 | 4 |
| 11 | 10 |
| 12 | 34 |
| 13 | 130 |
| 14 | 514 |
| 15 | 5 |
| 16 | 15 |
| 17 | 65 |
| 18 | 315 |
| 19 | 1565 |
| 20 | 7815 |
| 21 | 6 |
| 22 | 21 |
| 23 | 111 |
| 24 | 651 |
| 25 | 3891 |
| 26 | 23331 |
| 27 | 139971 |
| 28 | 7 |
| 29 | 28 |
| 30 | 175 |
| 31 | 1204 |
| 32 | 8407 |
| 33 | 58828 |
| 34 | 411775 |
| 35 | 2882404 |
| 36 | 8 |
| 37 | 36 |
| 38 | 260 |
| 39 | 2052 |
| 40 | 16388 |
| 41 | 131076 |
| 42 | 1048580 |
| 43 | 8388612 |
| 44 | 67108868 |
| 45 | 9 |
| 46 | 45 |
| 47 | 369 |
| 48 | 3285 |
| 49 | 29529 |
| 50 | 265725 |
[0,1,1,2,3,5,3,6,15,42,4,10,34,130,514,5,15,65, 315,1565,7815,6,21,111,651,3891,23331,139971,7,28, 175,1204,8407,58828,411775,2882404,8,36,260,2052, 16388,131076,1048580,8388612,67108868,9,45,369, 3285,29529,265725] |