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