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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 0 |
| 18 | 0 |
| 19 | 0 |
| 20 | 0 |
| 21 | 41910 |
| 22 | 201930 |
| 23 | 1285494 |
| 24 | 5570474 |
| 25 | 21935186 |
| 26 | 86053422 |
| 27 | 323695568 |
| 28 | 1156055600 |
| 29 | 3886222860 |
| 30 | 12694994676 |
| 31 | 40367970699 |
| 32 | 121103912097 |
| 33 | 343251594420 |
| 34 | 948989702220 |
[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,41910, 201930,1285494,5570474,21935186,86053422, 323695568,1156055600,3886222860,12694994676, 40367970699,121103912097,343251594420, 948989702220] |