Perl 6, 25 characters
{grep({$_-.Num},^∞)[^$_]}
This is 27 bytes, but the challenge is scored in characters.
This should work theoretically. This creates a lazy list of numbers that compares the default number type (with arbitrary precision) against the same number converted to a Num datatype, which is a 64-bit floating point number, and returns the first \$n\$ elements of the list.
Jo King
- 48.1k
- 6
- 130
- 187