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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 5 |
| 6 | 11 |
| 7 | 26 |
| 8 | 68 |
| 9 | 160 |
| 10 | 226 |
| 11 | 198 |
| 12 | 576 |
| 13 | 1246 |
| 14 | 122 |
| 15 | 328 |
| 16 | 5470 |
| 17 | 3048 |
| 18 | 22554 |
| 19 | 69648 |
| 20 | 24184 |
| 21 | 262752 |
| 22 | 4386396 |
| 23 | 70190 |
| 24 | 22222 |
| 25 | 4639830 |
| 26 | 1914046 |
| 27 | 3227106 |
| 28 | 35917950 |
| 29 | 2738592 |
| 30 | 325870 |
| 31 | 124850 |
| 32 | 8375086 |
| 33 | 7397758 |
| 34 | 129192 |
| 35 | 6948110 |
| 36 | 10496178 |
| 37 | 82166 |
| 38 | 740450 |
| 39 | 44446188 |
| 40 | 1473852 |
| 41 | 184450 |
| 42 | 342342 |
| 43 | 14496 |
| 44 | 740 |
| 45 | 2906 |
| 46 | 7040 |
| 47 | 53772 |
| 48 | 20464 |
[1,1,2,3,5,11,26,68,160,226,198,576,1246,122,328, 5470,3048,22554,69648,24184,262752,4386396,70190, 22222,4639830,1914046,3227106,35917950,2738592, 325870,124850,8375086,7397758,129192,6948110, 10496178,82166,740450,44446188,1473852,184450, 342342,14496,740,2906,7040,53772,20464] |