(1461 + 342 (1.25 + (0.287 60000! (log 60000 - (log((7-1))/log(10) + 33841/58628 + 1/2(7-1) - 1/12((7-1)^2)))) / ((60000-7)!(60000^7))))- (1461 + 342 (1.25 + (0.287 6000! (log 6000 - (log((7-1))/log(10) + 33841/58628 + 1/2(7-1) - 1/12((7-1)^2)))) / ((6000-7)!(6000^7))))