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 A228642 #13 Aug 31 2013 02:30:41 %S A228642 1,4,9,21,25,29,41,49,61,69,81,89 %N A228642 Squares of primes mod 100. %C A228642 a(n) is the complete list of the last two digits of terms in A001248, with leading zeros omitted. %C A228642 Numbers 4 and 25 appear only once as the squares of 2 and 5 respectively. %C A228642 This leaves only 10 different digit pairs that recur in A001248. %C A228642 Contrast with A010461 which has 22 different values for the squares of the integers (see A000290), all of which recur. %C A228642 Nearly identical to A210251, for the squares of odd numbers. %Y A228642 Cf. A001248, A000290. %K A228642 nonn,base,full,fini %O A228642 1,2 %A A228642 _Richard R. Forberg_, Aug 28 2013