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| n | a(n) |
|---|---|
| 0 | 4 |
| 1 | 2 |
| 2 | 12 |
| 3 | 6 |
| 4 | 20 |
| 5 | 14 |
| 6 | 62 |
| 7 | 46 |
| 8 | 108 |
| 9 | 74 |
| 10 | 244 |
| 11 | 176 |
| 12 | 486 |
| 13 | 364 |
| 14 | 956 |
| 15 | 680 |
| 16 | 1682 |
| 17 | 1326 |
| 18 | 3300 |
| 19 | 2522 |
| 20 | 5884 |
| 21 | 4562 |
| 22 | 10328 |
| 23 | 8312 |
| 24 | 18680 |
| 25 | 15028 |
| 26 | 31472 |
| 27 | 25832 |
| 28 | 54888 |
| 29 | 45676 |
| 30 | 92828 |
| 31 | 78142 |
| 32 | 156158 |
| 33 | 133688 |
| 34 | 258464 |
| 35 | 225832 |
| 36 | 429172 |
| 37 | 376450 |
| 38 | 699878 |
| 39 | 624618 |
| 40 | 1140294 |
| 41 | 1031538 |
| 42 | 1845002 |
| 43 | 1681284 |
| 44 | 2949698 |
| 45 | 2729894 |
| 46 | 4725338 |
| 47 | 4409132 |
| 48 | 7485858 |
| 49 | 7048744 |
| 50 | 11811642 |
| 51 | 11269324 |
| 52 | 18553170 |
[4,2,12,6,20,14,62,46,108,74,244,176,486,364,956, 680,1682,1326,3300,2522,5884,4562,10328,8312, 18680,15028,31472,25832,54888,45676,92828,78142, 156158,133688,258464,225832,429172,376450,699878, 624618,1140294,1031538,1845002,1681284,2949698, 2729894,4725338,4409132,7485858,7048744,11811642, 11269324,18553170] |