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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 5 |
| 7 | 6 |
| 8 | 7 |
| 9 | 8 |
| 10 | 9 |
| 11 | 12 |
| 12 | 13 |
| 13 | 14 |
| 14 | 15 |
| 15 | 18 |
| 16 | 19 |
| 17 | 20 |
| 18 | 21 |
| 19 | 24 |
| 20 | 25 |
| 21 | 26 |
| 22 | 27 |
| 23 | 30 |
| 24 | 31 |
| 25 | 32 |
| 26 | 33 |
| 27 | 36 |
| 28 | 37 |
| 29 | 38 |
| 30 | 39 |
| 31 | 60 |
| 32 | 61 |
| 33 | 62 |
| 34 | 63 |
| 35 | 66 |
| 36 | 67 |
| 37 | 68 |
| 38 | 69 |
| 39 | 90 |
| 40 | 91 |
| 41 | 92 |
| 42 | 93 |
| 43 | 96 |
| 44 | 97 |
| 45 | 98 |
| 46 | 99 |
| 47 | 120 |
| 48 | 121 |
| 49 | 122 |
| 50 | 123 |
| 51 | 126 |
| 52 | 127 |
| 53 | 128 |
| 54 | 129 |
| 55 | 150 |
| 56 | 151 |
| 57 | 152 |
| 58 | 153 |
| 59 | 156 |
| 60 | 157 |
| 61 | 158 |
| 62 | 159 |
| 63 | 180 |
[0,1,2,3,4,5,6,7,8,9,12,13,14,15,18,19,20,21,24, 25,26,27,30,31,32,33,36,37,38,39,60,61,62,63,66, 67,68,69,90,91,92,93,96,97,98,99,120,121,122,123, 126,127,128,129,150,151,152,153,156,157,158,159, 180] |