The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 3 |
| 4 | 0 |
| 5 | 1 |
| 6 | 3 |
| 7 | 6 |
| 8 | 4 |
| 9 | 0 |
| 10 | 1 |
| 11 | 3 |
| 12 | 6 |
| 13 | 4 |
| 14 | 6 |
| 15 | 9 |
| 16 | 0 |
| 17 | 1 |
| 18 | 3 |
| 19 | 6 |
| 20 | 4 |
| 21 | 6 |
| 22 | 9 |
| 23 | 13 |
| 24 | 12 |
| 25 | 0 |
| 26 | 1 |
| 27 | 3 |
| 28 | 6 |
| 29 | 4 |
| 30 | 6 |
| 31 | 9 |
| 32 | 13 |
| 33 | 12 |
| 34 | 9 |
| 35 | 11 |
| 36 | 0 |
| 37 | 1 |
| 38 | 3 |
| 39 | 6 |
| 40 | 4 |
| 41 | 6 |
| 42 | 9 |
| 43 | 13 |
| 44 | 12 |
| 45 | 9 |
| 46 | 11 |
| 47 | 14 |
| 48 | 18 |
| 49 | 0 |
| 50 | 1 |
| 51 | 3 |
| 52 | 6 |
| 53 | 4 |
| 54 | 6 |
| 55 | 9 |
| 56 | 13 |
| 57 | 12 |
| 58 | 9 |
| 59 | 11 |
| 60 | 14 |
| 61 | 18 |
| 62 | 17 |
| 63 | 20 |
| 64 | 0 |
| 65 | 1 |
| 66 | 3 |
| 67 | 6 |
| 68 | 4 |
| 69 | 6 |
| 70 | 9 |
| 71 | 13 |
| 72 | 12 |
| 73 | 9 |
| 74 | 11 |
| 75 | 14 |
| 76 | 18 |
| 77 | 17 |
| 78 | 20 |
| 79 | 24 |
| 80 | 16 |
| 81 | 0 |
| 82 | 1 |
| 83 | 3 |
| 84 | 6 |
| 85 | 4 |
| 86 | 6 |
| 87 | 9 |
| 88 | 13 |
[0,0,1,3,0,1,3,6,4,0,1,3,6,4,6,9,0,1,3,6,4,6,9,13, 12,0,1,3,6,4,6,9,13,12,9,11,0,1,3,6,4,6,9,13,12,9, 11,14,18,0,1,3,6,4,6,9,13,12,9,11,14,18,17,20,0,1, 3,6,4,6,9,13,12,9,11,14,18,17,20,24,16,0,1,3,6,4, 6,9,13] |