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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 8 |
| 4 | 38 |
| 5 | 164 |
| 6 | 635 |
| 7 | 2089 |
| 8 | 6174 |
| 9 | 16020 |
| 10 | 35749 |
| 11 | 68326 |
| 12 | 112788 |
| 13 | 162319 |
| 14 | 204992 |
| 15 | 230230 |
| 16 | 230230 |
| 17 | 204992 |
| 18 | 162319 |
| 19 | 112788 |
| 20 | 68326 |
| 21 | 35749 |
| 22 | 16020 |
| 23 | 6174 |
| 24 | 2089 |
| 25 | 635 |
| 26 | 164 |
| 27 | 38 |
| 28 | 8 |
| 29 | 2 |
| 30 | 1 |
| 31 | 1 |
| 32 | 0 |
[1,1,2,8,38,164,635,2089,6174,16020,35749,68326, 112788,162319,204992,230230,230230,204992,162319, 112788,68326,35749,16020,6174,2089,635,164,38,8,2, 1,1,0] |