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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 3 |
| 7 | 6 |
| 8 | 4 |
| 9 | 15 |
| 10 | 11 |
| 11 | 20 |
| 12 | 21 |
| 13 | 90 |
| 14 | 51 |
| 15 | 80 |
| 16 | 32 |
| 17 | 468 |
| 18 | 166 |
| 19 | 2910 |
| 20 | 124 |
| 21 | 521 |
| 22 | 277 |
| 23 | 20644 |
| 24 | 266 |
| 25 | 621 |
| 26 | 1761 |
| 27 | 1866 |
| 28 | 841 |
| 29 | 165874 |
| 30 | 1374 |
| 31 | 1484344 |
| 32 | 436 |
| 33 | 3797 |
| 34 | 12741 |
| 35 | 5383 |
| 36 | 3108 |
| 37 | 14653890 |
| 38 | 103783 |
| 39 | 31323 |
| 40 | 2294 |
| 41 | 158136988 |
| 42 | 12419 |
| 43 | 1852077284 |
| 44 | 6382 |
| 45 | 20786 |
| 46 | 939131 |
| 47 | 23394406084 |
[1,1,1,1,2,3,6,4,15,11,20,21,90,51,80,32,468,166, 2910,124,521,277,20644,266,621,1761,1866,841, 165874,1374,1484344,436,3797,12741,5383,3108, 14653890,103783,31323,2294,158136988,12419, 1852077284,6382,20786,939131,23394406084] |