| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 3 |
| 6 | 3 |
| 7 | 5 |
| 8 | 5 |
| 9 | 5 |
| 10 | 5 |
| 11 | 7 |
| 12 | 7 |
| 13 | 10 |
| 14 | 10 |
| 15 | 10 |
| 16 | 10 |
| 17 | 13 |
| 18 | 13 |
| 19 | 16 |
| 20 | 16 |
| 21 | 16 |
| 22 | 16 |
| 23 | 19 |
| 24 | 19 |
| 25 | 19 |
| 26 | 19 |
| 27 | 19 |
| 28 | 19 |
| 29 | 22 |
| 30 | 22 |
| 31 | 26 |
| 32 | 26 |
| 33 | 26 |
| 34 | 26 |
| 35 | 26 |
| 36 | 26 |
| 37 | 29 |
| 38 | 29 |
| 39 | 29 |
| 40 | 29 |
| 41 | 33 |
| 42 | 33 |
| 43 | 37 |
| 44 | 37 |
| 45 | 37 |
| 46 | 37 |
| 47 | 40 |
| 48 | 40 |
| 49 | 40 |
| 50 | 40 |
| 51 | 40 |
| 52 | 40 |
| 53 | 44 |
| 54 | 44 |
| 55 | 44 |
| 56 | 44 |
| 57 | 44 |
| 58 | 44 |
| 59 | 49 |
| 60 | 49 |
| 61 | 53 |
| 62 | 53 |
| 63 | 53 |
| 64 | 53 |
| 65 | 53 |
| 66 | 53 |
| 67 | 57 |
| 68 | 57 |
| 69 | 57 |
| 70 | 57 |
| 71 | 61 |
| 72 | 61 |
| 73 | 65 |
| 74 | 65 |
| 75 | 65 |
| 76 | 65 |
[0,0,1,1,3,3,5,5,5,5,7,7,10,10,10,10,13,13,16,16, 16,16,19,19,19,19,19,19,22,22,26,26,26,26,26,26, 29,29,29,29,33,33,37,37,37,37,40,40,40,40,40,40, 44,44,44,44,44,44,49,49,53,53,53,53,53,53,57,57, 57,57,61,61,65,65,65,65] |