| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 1 |
| 7 | 0 |
| 8 | 1 |
| 9 | 0 |
| 10 | 3 |
| 11 | 1 |
| 12 | 4 |
| 13 | 3 |
| 14 | 7 |
| 15 | 6 |
| 16 | 10 |
| 17 | 10 |
| 18 | 14 |
| 19 | 16 |
| 20 | 24 |
| 21 | 25 |
| 22 | 34 |
| 23 | 39 |
| 24 | 48 |
| 25 | 59 |
| 26 | 71 |
| 27 | 81 |
| 28 | 103 |
| 29 | 120 |
| 30 | 136 |
| 31 | 166 |
| 32 | 194 |
| 33 | 226 |
| 34 | 260 |
| 35 | 312 |
| 36 | 353 |
| 37 | 419 |
| 38 | 473 |
| 39 | 557 |
| 40 | 636 |
| 41 | 742 |
| 42 | 824 |
| 43 | 974 |
| 44 | 1097 |
| 45 | 1266 |
| 46 | 1418 |
| 47 | 1646 |
| 48 | 1837 |
| 49 | 2124 |
| 50 | 2356 |
| 51 | 2717 |
| 52 | 3029 |
| 53 | 3469 |
| 54 | 3830 |
| 55 | 4383 |
| 56 | 4884 |
| 57 | 5547 |
[0,0,0,0,0,0,1,0,1,0,3,1,4,3,7,6,10,10,14,16,24, 25,34,39,48,59,71,81,103,120,136,166,194,226,260, 312,353,419,473,557,636,742,824,974,1097,1266, 1418,1646,1837,2124,2356,2717,3029,3469,3830,4383, 4884,5547] |