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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 30 |
| 3 | 42 |
| 4 | 110 |
| 5 | 182 |
| 6 | 506 |
| 7 | 1406 |
| 8 | 2162 |
| 9 | 3422 |
| 10 | 3782 |
| 11 | 4290 |
| 12 | 4830 |
| 13 | 5402 |
| 14 | 6006 |
| 15 | 6806 |
| 16 | 11130 |
| 17 | 11342 |
| 18 | 12210 |
| 19 | 13110 |
| 20 | 16770 |
| 21 | 23870 |
| 22 | 24806 |
| 23 | 27390 |
| 24 | 27722 |
| 25 | 31862 |
| 26 | 33306 |
| 27 | 34410 |
| 28 | 34782 |
| 29 | 37442 |
| 30 | 37830 |
| 31 | 44310 |
| 32 | 49062 |
| 33 | 51302 |
| 34 | 56406 |
| 35 | 60762 |
| 36 | 64770 |
| 37 | 66822 |
| 38 | 68906 |
[2,30,42,110,182,506,1406,2162,3422,3782,4290, 4830,5402,6006,6806,11130,11342,12210,13110,16770, 23870,24806,27390,27722,31862,33306,34410,34782, 37442,37830,44310,49062,51302,56406,60762,64770, 66822,68906] |