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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 70 |
| 9 | 1 |
| 10 | 0 |
| 11 | 0 |
| 12 | 34650 |
| 13 | 1430 |
| 14 | 1 |
| 15 | 0 |
| 16 | 63063000 |
| 17 | 5105100 |
| 18 | 54740 |
| 19 | 1 |
| 20 | 305540235000 |
| 21 | 40738698000 |
| 22 | 1134117600 |
| 23 | 1652090 |
| 24 | 3246670537110001 |
| 25 | 644180662125000 |
| 26 | 33240837630000 |
| 27 | 314389754250 |
| 28 | 66475579247381221350 |
| 29 | 18359921887357050001 |
[1,0,0,0,1,0,0,0,70,1,0,0,34650,1430,1,0,63063000, 5105100,54740,1,305540235000,40738698000, 1134117600,1652090,3246670537110001, 644180662125000,33240837630000,314389754250, 66475579247381221350,18359921887357050001] |