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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 3 |
| 6 | 3 |
| 7 | 3 |
| 8 | 4 |
| 9 | 4 |
| 10 | 6 |
| 11 | 6 |
| 12 | 6 |
| 13 | 8 |
| 14 | 8 |
| 15 | 8 |
| 16 | 8 |
| 17 | 10 |
| 18 | 11 |
| 19 | 11 |
| 20 | 13 |
| 21 | 13 |
| 22 | 13 |
| 23 | 13 |
| 24 | 13 |
| 25 | 15 |
| 26 | 17 |
| 27 | 17 |
| 28 | 17 |
| 29 | 19 |
| 30 | 19 |
| 31 | 19 |
| 32 | 20 |
| 33 | 20 |
| 34 | 22 |
| 35 | 22 |
| 36 | 22 |
| 37 | 24 |
| 38 | 24 |
| 39 | 24 |
| 40 | 26 |
| 41 | 28 |
| 42 | 28 |
| 43 | 28 |
| 44 | 28 |
| 45 | 30 |
| 46 | 30 |
| 47 | 30 |
| 48 | 30 |
| 49 | 30 |
| 50 | 33 |
| 51 | 33 |
| 52 | 35 |
| 53 | 37 |
| 54 | 37 |
| 55 | 37 |
| 56 | 37 |
| 57 | 37 |
| 58 | 39 |
| 59 | 39 |
| 60 | 39 |
| 61 | 41 |
| 62 | 41 |
| 63 | 41 |
| 64 | 41 |
| 65 | 45 |
| 66 | 45 |
| 67 | 45 |
| 68 | 47 |
| 69 | 47 |
[0,0,1,1,1,3,3,3,4,4,6,6,6,8,8,8,8,10,11,11,13,13, 13,13,13,15,17,17,17,19,19,19,20,20,22,22,22,24, 24,24,26,28,28,28,28,30,30,30,30,30,33,33,35,37, 37,37,37,37,39,39,39,41,41,41,41,45,45,45,47,47] |