| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 0 |
| 3 | 2 |
| 4 | 1 |
| 5 | 3 |
| 6 | 2 |
| 7 | 4 |
| 8 | 4 |
| 9 | 6 |
| 10 | 7 |
| 11 | 8 |
| 12 | 11 |
| 13 | 11 |
| 14 | 17 |
| 15 | 16 |
| 16 | 25 |
| 17 | 22 |
| 18 | 36 |
| 19 | 31 |
| 20 | 49 |
| 21 | 44 |
| 22 | 68 |
| 23 | 61 |
| 24 | 90 |
| 25 | 85 |
| 26 | 120 |
| 27 | 118 |
| 28 | 156 |
| 29 | 160 |
| 30 | 204 |
| 31 | 217 |
| 32 | 261 |
| 33 | 291 |
| 34 | 337 |
| 35 | 386 |
| 36 | 429 |
| 37 | 507 |
| 38 | 548 |
| 39 | 662 |
| 40 | 694 |
| 41 | 854 |
| 42 | 882 |
| 43 | 1096 |
| 44 | 1112 |
| 45 | 1396 |
| 46 | 1406 |
| 47 | 1765 |
| 48 | 1768 |
| 49 | 2219 |
| 50 | 2223 |
| 51 | 2776 |
| 52 | 2784 |
| 53 | 3451 |
| 54 | 3484 |
| 55 | 4275 |
[1,1,0,2,1,3,2,4,4,6,7,8,11,11,17,16,25,22,36,31, 49,44,68,61,90,85,120,118,156,160,204,217,261,291, 337,386,429,507,548,662,694,854,882,1096,1112, 1396,1406,1765,1768,2219,2223,2776,2784,3451,3484, 4275] |