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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 6 |
| 4 | 894839431299072 |
| 5 | 2669547726944484045356192220 |
| 6 | 3453061562403499837458734621479403520 |
| 7 | 32534816367748624110581496623513688165161250 |
| 8 | 13865643738325095813931525301368809527451487174656 |
| 9 | 719243085838104840090332816450418348485262159478161912 |
[0,0,0,6,894839431299072, 2669547726944484045356192220, 3453061562403499837458734621479403520, 32534816367748624110581496623513688165161250, 13865643738325095813931525301368809527451487174656\ , 71924308583810484009033281645041834848526215947816\ 1912] |