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((x+25)*n^4-10*(x+33)*n^3+5*(7*x+307)*n^2-2*(25*x+1671)*n+24*(x+165))/24,n=5
((x+25)*n^4-10*(x+33)*n^3+5*(7*x+307)*n^2-2*(25*x+1671)*n+24*(x+165))/24,n=5
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