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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 3 |
| 7 | 0 |
| 8 | 4 |
| 9 | 3 |
| 10 | 9 |
| 11 | 0 |
| 12 | 27 |
| 13 | 43 |
| 14 | 71 |
| 15 | 0 |
| 16 | 190 |
| 17 | 318 |
| 18 | 604 |
| 19 | 0 |
| 20 | 1846 |
| 21 | 3127 |
| 22 | 5664 |
| 23 | 0 |
| 24 | 19048 |
| 25 | 34065 |
| 26 | 62045 |
| 27 | 0 |
| 28 | 205713 |
| 29 | 378243 |
| 30 | 705836 |
| 31 | 0 |
| 32 | 2403370 |
| 33 | 4434940 |
| 34 | 8276125 |
| 35 | 0 |
| 36 | 28980680 |
| 37 | 54167797 |
| 38 | 101541048 |
| 39 | 0 |
| 40 | 358095372 |
| 41 | 674776903 |
| 42 | 1274888645 |
| 43 | 0 |
| 44 | 4551828850 |
| 45 | 8612421500 |
[1,1,1,0,0,1,3,0,4,3,9,0,27,43,71,0,190,318,604,0, 1846,3127,5664,0,19048,34065,62045,0,205713, 378243,705836,0,2403370,4434940,8276125,0, 28980680,54167797,101541048,0,358095372,674776903, 1274888645,0,4551828850,8612421500] |