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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 4 |
| 3 | 16 |
| 4 | 30 |
| 5 | 60 |
| 6 | 70 |
| 7 | 72 |
| 8 | 84 |
| 9 | 220 |
| 10 | 240 |
| 11 | 256 |
| 12 | 286 |
| 13 | 288 |
| 14 | 308 |
| 15 | 378 |
| 16 | 440 |
| 17 | 450 |
| 18 | 476 |
| 19 | 528 |
| 20 | 540 |
| 21 | 560 |
| 22 | 576 |
| 23 | 594 |
| 24 | 624 |
| 25 | 646 |
| 26 | 648 |
| 27 | 728 |
| 28 | 800 |
| 29 | 884 |
| 30 | 900 |
| 31 | 960 |
| 32 | 1040 |
| 33 | 1056 |
| 34 | 1080 |
| 35 | 1160 |
| 36 | 1170 |
| 37 | 1248 |
| 38 | 1276 |
| 39 | 1404 |
| 40 | 1456 |
| 41 | 1496 |
| 42 | 1530 |
| 43 | 1748 |
| 44 | 1776 |
| 45 | 1798 |
| 46 | 1824 |
| 47 | 1976 |
| 48 | 2322 |
| 49 | 2408 |
| 50 | 2464 |
[2,4,16,30,60,70,72,84,220,240,256,286,288,308, 378,440,450,476,528,540,560,576,594,624,646,648, 728,800,884,900,960,1040,1056,1080,1160,1170,1248, 1276,1404,1456,1496,1530,1748,1776,1798,1824,1976, 2322,2408,2464] |