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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 1 |
| 4 | 6 |
| 5 | 0 |
| 6 | 15 |
| 7 | 0 |
| 8 | 31 |
| 9 | 0 |
| 10 | 55 |
| 11 | 8 |
| 12 | 119 |
| 13 | 16 |
| 14 | 239 |
| 15 | 48 |
| 16 | 463 |
| 17 | 48 |
| 18 | 839 |
| 19 | 184 |
| 20 | 1887 |
| 21 | 160 |
| 22 | 3935 |
| 23 | 160 |
| 24 | 7775 |
| 25 | 416 |
| 26 | 15903 |
| 27 | 992 |
| 28 | 31775 |
| 29 | 928 |
| 30 | 62591 |
| 31 | 2944 |
| 32 | 128127 |
| 33 | 2992 |
| 34 | 246863 |
| 35 | 15284 |
| 36 | 508123 |
| 37 | 32548 |
| 38 | 1016059 |
| 39 | 32516 |
| 40 | 2065035 |
| 41 | 25972 |
| 42 | 4168327 |
| 43 | 25720 |
| 44 | 8362887 |
| 45 | 9304 |
[1,1,2,1,6,0,15,0,31,0,55,8,119,16,239,48,463,48, 839,184,1887,160,3935,160,7775,416,15903,992, 31775,928,62591,2944,128127,2992,246863,15284, 508123,32548,1016059,32516,2065035,25972,4168327, 25720,8362887,9304] |