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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 8 |
| 3 | 10 |
| 4 | 80 |
| 5 | 244 |
| 6 | 242 |
| 7 | 2188 |
| 8 | 6560 |
| 9 | 2188 |
| 10 | 59048 |
| 11 | 177148 |
| 12 | 177146 |
| 13 | 1594324 |
| 14 | 4782968 |
| 15 | 4782970 |
| 16 | 43046720 |
| 17 | 129140164 |
| 18 | 43046720 |
| 19 | 1162261468 |
| 20 | 3486784400 |
| 21 | 3486784402 |
| 22 | 31381059608 |
| 23 | 94143178828 |
| 24 | 94143178826 |
| 25 | 847288609444 |
| 26 | 2541865828328 |
| 27 | 282429536482 |
| 28 | 22876792454960 |
| 29 | 68630377364884 |
| 30 | 68630377364882 |
| 31 | 617673396283948 |
[4,8,10,80,244,242,2188,6560,2188,59048,177148, 177146,1594324,4782968,4782970,43046720,129140164, 43046720,1162261468,3486784400,3486784402, 31381059608,94143178828,94143178826,847288609444, 2541865828328,282429536482,22876792454960, 68630377364884,68630377364882,617673396283948] |