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| n | a(n) |
|---|---|
| 1 | 20 |
| 2 | 74 |
| 3 | 146 |
| 4 | 212 |
| 5 | 310 |
| 6 | 260 |
| 7 | 828 |
| 8 | 12722 |
| 9 | 4730 |
| 10 | 1820 |
| 11 | 2312 |
| 12 | 32502 |
| 13 | 38612 |
| 14 | 10362 |
| 15 | 3752 |
| 16 | 9178 |
| 17 | 1147442 |
| 18 | 793252 |
| 19 | 2176212 |
| 20 | 325418 |
| 21 | 24818 |
| 22 | 25652 |
| 23 | 3283862 |
| 24 | 5924312 |
| 25 | 11523584 |
| 26 | 8433752 |
| 27 | 677750 |
| 28 | 56612 |
| 29 | 102356 |
| 30 | 104956562 |
| 31 | 126809722 |
| 32 | 2708828768 |
| 33 | 896174928 |
[20,74,146,212,310,260,828,12722,4730,1820,2312, 32502,38612,10362,3752,9178,1147442,793252, 2176212,325418,24818,25652,3283862,5924312, 11523584,8433752,677750,56612,102356,104956562, 126809722,2708828768,896174928] |