http://www.perlmonks.org?node_id=716684


in reply to Re^3: Numerically generate the perl sequence 1, 11, 111, ....
in thread Generate the perl sequence 1, 11, 111, ....

We shouldn't exaggerate.

The Unicode database is necessary for case conversion (uc/lc) and regex matches (is something a whitespace? or a letter? or a number?). Whereas the OEIS database would be only useful for one operator, and even there it's only part of the solution - if you know that a sequence represents a part of the prime numbers, you still have no really efficient way of generating them lazily.

However a library could easily override the infix:<...> operator and thus do what you want.