Is it good to not have keyboard-based sequences in our password generator?

If we have to write a password generator, is it a good idea to contain a "keyboard-based sequence" checker? So if the generated password is:

asdf4%'Q!76342

Then this password will be rejected by the generator, and it generates another, because of the "asdf".

Question: Is it a good idea to remove the passwords that has "keyboard-based sequences" in them? Or it will just produce passwords that can be statistically broken, since we know that the passwords will not have "asdf" in them? Which solution is better?