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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 2 |
| 3 | 0 |
| 4 | 4 |
| 5 | 12 |
| 6 | 0 |
| 7 | 144 |
| 8 | 168 |
| 9 | 200 |
| 10 | 0 |
| 11 | 25696 |
| 12 | 18768 |
| 13 | 12384 |
| 14 | 8688 |
| 15 | 0 |
| 16 | 18082560 |
| 17 | 8697280 |
| 18 | 3923040 |
| 19 | 1914560 |
| 20 | 936992 |
| 21 | 0 |
| 22 | 47025585664 |
| 23 | 14670384000 |
| 24 | 4512045120 |
| 25 | 1622358720 |
| 26 | 647087040 |
| 27 | 242016192 |
| 28 | 0 |
| 29 | 450955726792704 |
| 30 | 87781550054912 |
| 31 | 17679638000640 |
| 32 | 4496696041600 |
| 33 | 1408276410240 |
| 34 | 482302375296 |
| 35 | 145763745920 |
[1,0,2,0,4,12,0,144,168,200,0,25696,18768,12384, 8688,0,18082560,8697280,3923040,1914560,936992,0, 47025585664,14670384000,4512045120,1622358720, 647087040,242016192,0,450955726792704, 87781550054912,17679638000640,4496696041600, 1408276410240,482302375296,145763745920] |