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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 1 |
| 7 | 1 |
| 8 | 2 |
| 9 | 3 |
| 10 | 4 |
| 11 | 5 |
| 12 | 6 |
| 13 | 7 |
| 14 | 8 |
| 15 | 9 |
| 16 | 10 |
| 17 | 12 |
| 18 | 13 |
| 19 | 15 |
| 20 | 17 |
| 21 | 19 |
| 22 | 21 |
| 23 | 23 |
| 24 | 25 |
| 25 | 27 |
| 26 | 29 |
| 27 | 31 |
| 28 | 34 |
| 29 | 36 |
| 30 | 39 |
| 31 | 42 |
| 32 | 45 |
| 33 | 48 |
| 34 | 51 |
| 35 | 54 |
| 36 | 57 |
| 37 | 60 |
| 38 | 63 |
| 39 | 67 |
| 40 | 70 |
| 41 | 74 |
| 42 | 78 |
| 43 | 82 |
| 44 | 86 |
| 45 | 90 |
| 46 | 94 |
| 47 | 98 |
| 48 | 102 |
| 49 | 106 |
| 50 | 111 |
| 51 | 115 |
| 52 | 120 |
| 53 | 125 |
| 54 | 130 |
| 55 | 135 |
| 56 | 140 |
| 57 | 145 |
| 58 | 150 |
| 59 | 155 |
| 60 | 160 |
| 61 | 166 |
| 62 | 171 |
| 63 | 177 |
| 64 | 183 |
| 65 | 189 |
| 66 | 195 |
| 67 | 201 |
| 68 | 207 |
[0,0,0,0,0,0,1,1,2,3,4,5,6,7,8,9,10,12,13,15,17, 19,21,23,25,27,29,31,34,36,39,42,45,48,51,54,57, 60,63,67,70,74,78,82,86,90,94,98,102,106,111,115, 120,125,130,135,140,145,150,155,160,166,171,177, 183,189,195,201,207] |