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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 0 |
| 6 | 0 |
| 7 | 1 |
| 8 | 1 |
| 9 | 0 |
| 10 | 1 |
| 11 | 3 |
| 12 | 1 |
| 13 | 1 |
| 14 | 7 |
| 15 | 6 |
| 16 | 2 |
| 17 | 15 |
| 18 | 25 |
| 19 | 11 |
| 20 | 32 |
| 21 | 90 |
| 22 | 66 |
| 23 | 78 |
| 24 | 302 |
| 25 | 351 |
| 26 | 267 |
| 27 | 987 |
| 28 | 1703 |
| 29 | 1305 |
| 30 | 3291 |
| 31 | 7799 |
| 32 | 7463 |
| 33 | 11976 |
| 34 | 34568 |
| 35 | 43584 |
| 36 | 51329 |
| 37 | 151631 |
| 38 | 249527 |
| 39 | 266058 |
| 40 | 675490 |
| 41 | 1395375 |
| 42 | 1586432 |
| 43 | 3159982 |
| 44 | 7675720 |
| 45 | 10132557 |
| 46 | 16108875 |
| 47 | 41991096 |
| 48 | 66170977 |
| 49 | 91724556 |
[1,0,0,0,1,0,0,1,1,0,1,3,1,1,7,6,2,15,25,11,32,90, 66,78,302,351,267,987,1703,1305,3291,7799,7463, 11976,34568,43584,51329,151631,249527,266058, 675490,1395375,1586432,3159982,7675720,10132557, 16108875,41991096,66170977,91724556] |