Question 970210
The smallest is 5002
The largest is 8654
Working down:
8654
8652
8642
8624
8564
8562
8546
8542
8526
8524
8462
8456
8452
8264
8256
8254
8246
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I think that's 17 so far. I think this is
all the numbers that start with 8. They are:
8XXX
Then you count all the even:
6XXX
5XXX
4XXX
2XXX
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I don't know if you can generalize and say
each group also has 17 numbers.
I think you have to count all of them.
I would try all the 2XXX, and if there are 17,
then maybe all have 17
Good luck