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| n | a(n) |
|---|---|
| 0 | 4 |
| 1 | 8 |
| 2 | 36 |
| 3 | 112 |
| 4 | 260 |
| 5 | 504 |
| 6 | 868 |
| 7 | 1376 |
| 8 | 2052 |
| 9 | 2920 |
| 10 | 4004 |
| 11 | 5328 |
| 12 | 6916 |
| 13 | 8792 |
| 14 | 10980 |
| 15 | 13504 |
| 16 | 16388 |
| 17 | 19656 |
| 18 | 23332 |
| 19 | 27440 |
| 20 | 32004 |
| 21 | 37048 |
| 22 | 42596 |
| 23 | 48672 |
| 24 | 55300 |
| 25 | 62504 |
| 26 | 70308 |
| 27 | 78736 |
| 28 | 87812 |
| 29 | 97560 |
| 30 | 108004 |
| 31 | 119168 |
| 32 | 131076 |
| 33 | 143752 |
| 34 | 157220 |
| 35 | 171504 |
| 36 | 186628 |
| 37 | 202616 |
| 38 | 219492 |
[4,8,36,112,260,504,868,1376,2052,2920,4004,5328, 6916,8792,10980,13504,16388,19656,23332,27440, 32004,37048,42596,48672,55300,62504,70308,78736, 87812,97560,108004,119168,131076,143752,157220, 171504,186628,202616,219492] |