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| n | a(n) |
|---|---|
| 7 | 1 |
| 8 | 0 |
| 9 | 8 |
| 10 | 8 |
| 11 | 44 |
| 12 | 80 |
| 13 | 236 |
| 14 | 513 |
| 15 | 1246 |
| 16 | 2780 |
| 17 | 6280 |
| 18 | 13786 |
| 19 | 30070 |
| 20 | 64696 |
| 21 | 134585 |
| 22 | 285384 |
| 23 | 594786 |
| 24 | 1207084 |
| 25 | 2453682 |
| 26 | 4972098 |
| 27 | 9946044 |
| 28 | 19646041 |
| 29 | 38691878 |
| 30 | 75939596 |
| 31 | 147425468 |
| 32 | 283809162 |
| 33 | 546291230 |
| 34 | 1042095956 |
| 35 | 1977521091 |
| 36 | 3730060870 |
| 37 | 7022446786 |
| 38 | 13104269980 |
[1,0,8,8,44,80,236,513,1246,2780,6280,13786,30070, 64696,134585,285384,594786,1207084,2453682, 4972098,9946044,19646041,38691878,75939596, 147425468,283809162,546291230,1042095956, 1977521091,3730060870,7022446786,13104269980] |