Is there a way to come up with a regular expression for multiple response validations in a google form question?

I am trying to create a question on google forms with the following conditions but having a hard time figuring out how to create a regular expression for this

What is your member ID?

1. Must be an 8 digit number
2. cannot be repeating numbers like 00000000 or 11111111 etc
3. cannot be 12345678

Is there a way to come up with a regular expression to achieve this?