| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 1 |
| 8 | 0 |
| 9 | 2 |
| 10 | 0 |
| 11 | 5 |
| 12 | 0 |
| 13 | 9 |
| 14 | 1 |
| 15 | 16 |
| 16 | 2 |
| 17 | 25 |
| 18 | 5 |
| 19 | 39 |
| 20 | 10 |
| 21 | 57 |
| 22 | 20 |
| 23 | 82 |
| 24 | 35 |
| 25 | 114 |
| 26 | 62 |
| 27 | 157 |
| 28 | 102 |
| 29 | 212 |
| 30 | 166 |
| 31 | 285 |
| 32 | 259 |
| 33 | 380 |
| 34 | 399 |
| 35 | 506 |
| 36 | 596 |
| 37 | 673 |
| 38 | 882 |
| 39 | 897 |
| 40 | 1275 |
| 41 | 1198 |
| 42 | 1826 |
| 43 | 1605 |
| 44 | 2572 |
| 45 | 2159 |
| 46 | 3591 |
| 47 | 2910 |
| 48 | 4948 |
| 49 | 3935 |
| 50 | 6769 |
| 51 | 5326 |
| 52 | 9164 |
| 53 | 7217 |
| 54 | 12327 |
| 55 | 9772 |
| 56 | 16448 |
| 57 | 13225 |
| 58 | 21826 |
[1,0,0,0,0,0,0,1,0,2,0,5,0,9,1,16,2,25,5,39,10,57, 20,82,35,114,62,157,102,212,166,285,259,380,399, 506,596,673,882,897,1275,1198,1826,1605,2572,2159, 3591,2910,4948,3935,6769,5326,9164,7217,12327, 9772,16448,13225,21826] |