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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 6 |
| 3 | 12 |
| 4 | 25 |
| 5 | 27 |
| 6 | 29 |
| 7 | 48 |
| 8 | 63 |
| 9 | 88 |
| 10 | 93 |
| 11 | 134 |
| 12 | 147 |
| 13 | 149 |
| 14 | 151 |
| 15 | 153 |
| 16 | 181 |
| 17 | 211 |
| 18 | 224 |
| 19 | 235 |
| 20 | 247 |
| 21 | 249 |
| 22 | 285 |
| 23 | 301 |
| 24 | 389 |
| 25 | 433 |
| 26 | 483 |
| 27 | 612 |
| 28 | 642 |
| 29 | 694 |
| 30 | 742 |
| 31 | 877 |
| 32 | 975 |
| 33 | 994 |
| 34 | 1037 |
| 35 | 1039 |
| 36 | 1080 |
| 37 | 1094 |
| 38 | 1153 |
| 39 | 1276 |
| 40 | 1278 |
| 41 | 1301 |
| 42 | 1380 |
| 43 | 1395 |
| 44 | 1439 |
| 45 | 1474 |
| 46 | 1563 |
| 47 | 1580 |
| 48 | 1617 |
| 49 | 1638 |
| 50 | 1688 |
[4,6,12,25,27,29,48,63,88,93,134,147,149,151,153, 181,211,224,235,247,249,285,301,389,433,483,612, 642,694,742,877,975,994,1037,1039,1080,1094,1153, 1276,1278,1301,1380,1395,1439,1474,1563,1580,1617, 1638,1688] |