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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 0 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 2 |
| 10 | 1 |
| 11 | 2 |
| 12 | 2 |
| 13 | 2 |
| 14 | 2 |
| 15 | 4 |
| 16 | 3 |
| 17 | 3 |
| 18 | 4 |
| 19 | 4 |
| 20 | 5 |
| 21 | 7 |
| 22 | 6 |
| 23 | 7 |
| 24 | 10 |
| 25 | 10 |
| 26 | 11 |
| 27 | 15 |
| 28 | 16 |
| 29 | 18 |
| 30 | 23 |
| 31 | 25 |
| 32 | 32 |
| 33 | 38 |
| 34 | 43 |
| 35 | 53 |
| 36 | 64 |
| 37 | 73 |
| 38 | 89 |
| 39 | 108 |
| 40 | 131 |
| 41 | 153 |
| 42 | 188 |
| 43 | 223 |
| 44 | 272 |
| 45 | 329 |
| 46 | 395 |
| 47 | 475 |
| 48 | 583 |
| 49 | 697 |
| 50 | 848 |
| 51 | 1027 |
| 52 | 1247 |
| 53 | 1506 |
| 54 | 1837 |
| 55 | 2223 |
| 56 | 2708 |
| 57 | 3282 |
| 58 | 3993 |
| 59 | 4848 |
| 60 | 5913 |
| 61 | 7175 |
| 62 | 8745 |
| 63 | 10640 |
[0,0,1,0,1,1,1,1,2,1,2,2,2,2,4,3,3,4,4,5,7,6,7,10, 10,11,15,16,18,23,25,32,38,43,53,64,73,89,108,131, 153,188,223,272,329,395,475,583,697,848,1027,1247, 1506,1837,2223,2708,3282,3993,4848,5913,7175,8745, 10640] |