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