This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A246448 #5 Sep 03 2014 23:47:29 %S A246448 2,3,7,8,10,11,12,13,14,15,17,18,19,20,22,23,26,27,28,30,31,32,33,34, %T A246448 35,37,38,39,40,42,43,45,46,47,48,50,51,52,53,54,55,57,58,59,60,62,63, %U A246448 65,66,67,68,70,71,72,73,74,75,77,78,79,80,82,83,85,86,87,88,90,91,92,93,94,95 %N A246448 Numbers n such that a square will never end in the digits of n. %C A246448 Complement of A238712. %e A246448 No square will ever end in a 2, thus 2 is a member of this sequence. %o A246448 (PARI) %o A246448 b(n)=v=[];for(k=10^(n-1),10^n,v=concat(v,k^2%10^n));v=vecsort(v,,8);v %o A246448 for(n=1,500,d=digits(n);if(!vecsearch(b(#d),n),print1(n,", "))) %Y A246448 Cf. A238712. %K A246448 nonn,base %O A246448 1,1 %A A246448 _Derek Orr_, Aug 26 2014