All the positive perfect squares 1, 4, 9, 16, 25.... are written in strictly ascending order of magnitude and without the commas and spaces, resulting in the following infinite string:
149162536496481100121144......
Reading left to right, what is the 2010^{th} digit in the above pattern?
(In reply to
re: re: Computer verification #2 by Jim Keneipp)
It reserves a space for a sign character, where a blank is equivalent to plus, but a negative number gets an explicit "" in this position, so, for example positive and negative 4 each get a string of length 2, one being blank and "4" and the other being "4".

Posted by Charlie
on 20100128 17:09:57 