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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 3 |
| 5 | 12 |
| 6 | 12 |
| 7 | 4 |
| 8 | 42 |
| 9 | 100 |
| 10 | 110 |
| 11 | 5 |
| 12 | 120 |
| 13 | 540 |
| 14 | 1140 |
| 15 | 1320 |
| 16 | 6 |
| 17 | 310 |
| 18 | 2408 |
| 19 | 8106 |
| 20 | 16324 |
| 21 | 19502 |
| 22 | 7 |
| 23 | 756 |
| 24 | 9660 |
| 25 | 48552 |
| 26 | 142632 |
| 27 | 280140 |
| 28 | 341796 |
| 29 | 8 |
| 30 | 1778 |
| 31 | 36300 |
| 32 | 263350 |
| 33 | 1064456 |
| 34 | 2891706 |
| 35 | 5592388 |
| 36 | 6927230 |
| 37 | 9 |
| 38 | 4080 |
| 39 | 130620 |
| 40 | 1339740 |
| 41 | 7242600 |
| 42 | 25734360 |
| 43 | 66454020 |
| 44 | 127176420 |
| 45 | 159338640 |
[1,2,2,3,12,12,4,42,100,110,5,120,540,1140,1320,6, 310,2408,8106,16324,19502,7,756,9660,48552,142632, 280140,341796,8,1778,36300,263350,1064456,2891706, 5592388,6927230,9,4080,130620,1339740,7242600, 25734360,66454020,127176420,159338640] |