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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 6 |
| 3 | 12 |
| 4 | 18 |
| 5 | 30 |
| 6 | 34 |
| 7 | 42 |
| 8 | 51 |
| 9 | 55 |
| 10 | 56 |
| 11 | 60 |
| 12 | 72 |
| 13 | 86 |
| 14 | 92 |
| 15 | 94 |
| 16 | 102 |
| 17 | 108 |
| 18 | 138 |
| 19 | 142 |
| 20 | 144 |
| 21 | 150 |
| 22 | 160 |
| 23 | 180 |
| 24 | 184 |
| 25 | 186 |
| 26 | 192 |
| 27 | 198 |
| 28 | 202 |
| 29 | 204 |
| 30 | 214 |
| 31 | 216 |
| 32 | 218 |
| 33 | 220 |
| 34 | 228 |
| 35 | 236 |
| 36 | 240 |
| 37 | 243 |
| 38 | 248 |
| 39 | 249 |
| 40 | 266 |
| 41 | 270 |
| 42 | 282 |
| 43 | 300 |
| 44 | 302 |
| 45 | 304 |
| 46 | 312 |
| 47 | 320 |
| 48 | 322 |
| 49 | 328 |
| 50 | 340 |
| 51 | 341 |
| 52 | 348 |
| 53 | 392 |
| 54 | 394 |
| 55 | 412 |
[4,6,12,18,30,34,42,51,55,56,60,72,86,92,94,102, 108,138,142,144,150,160,180,184,186,192,198,202, 204,214,216,218,220,228,236,240,243,248,249,266, 270,282,300,302,304,312,320,322,328,340,341,348, 392,394,412] |