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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 2 |
| 7 | 3 |
| 8 | 7 |
| 9 | 15 |
| 10 | 12 |
| 11 | 30 |
| 12 | 8 |
| 13 | 32 |
| 14 | 164 |
| 15 | 21 |
| 16 | 114 |
| 17 | 867 |
| 18 | 3226 |
| 19 | 720 |
| 20 | 4414 |
| 21 | 24412 |
| 22 | 4079 |
| 23 | 31454 |
| 24 | 3040 |
| 25 | 25737 |
| 26 | 252727 |
| 27 | 20505 |
| 28 | 191778 |
| 29 | 2140186 |
| 30 | 14554796 |
| 31 | 1669221 |
| 32 | 17754992 |
| 33 | 148553131 |
| 34 | 14708525 |
| 35 | 177117401 |
| 36 | 10567748 |
| 37 | 138584026 |
| 38 | 1953134982 |
| 39 | 103372655 |
| 40 | 1431596750 |
| 41 | 22374792451 |
| 42 | 218018425976 |
| 43 | 16852166906 |
| 44 | 254094892254 |
[0,0,0,1,1,2,2,3,7,15,12,30,8,32,164,21,114,867, 3226,720,4414,24412,4079,31454,3040,25737,252727, 20505,191778,2140186,14554796,1669221,17754992, 148553131,14708525,177117401,10567748,138584026, 1953134982,103372655,1431596750,22374792451, 218018425976,16852166906,254094892254] |