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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 2 |
| 4 | 79 |
| 5 | 82117 |
| 6 | 4936900199 |
| 7 | 27555467226181396 |
| 8 | 20554872166566046969648895 |
| 9 | 2786548447182420815380482508924733911 |
| 10 | 89607283195144164483079065133414172790220498449945 |
| 11 | 864608448649084311874549352448884076627916391005243593208944730790 |
[1,0,0,2,79,82117,4936900199,27555467226181396, 20554872166566046969648895, 2786548447182420815380482508924733911, 89607283195144164483079065133414172790220498449945\ , 86460844864908431187454935244888407662791639100524\ 3593208944730790] |