Dynamically exclude some numbers from randomly generated sequence

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Adel4:
I want to produce some random sequence of numbers between a range, for example
100 to 200

After a while, depending on some events, I want to produce some new sequence between the same range (100 to 200), but this time I want to exclude some numbers.

for example I don't want

[150,165,170]

.

for the next time, These excluded numbers may or may not be included in the sequence.

For your example:

Generate a random number in the range 100 to 197.
If it is 150, change it to 198.
If it is 165, change it to 199.
If it is 170, change it to 200.
Otherwise, leave it alone.
Problem solved.