Why not base-2 ... could you elaborate?

8 * 1234 (the smallest possible denominator) = 9872, which is just 4 away from the largest possible numerator, 9876, so there isn't much wiggle room there. But 8 is already taken, and the next possible combination 9765, is not divisible with 8, and the quotient is less than 1234.

In general, zyxw...(base/2-1) - (base-2) * 1234...(base/2-1) = base/2 - 1.

In reply to Re^4: Efficient enumeration of pandigital fractions by kikuchiyo
in thread Efficient enumeration of pandigital fractions by kikuchiyo

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