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 A204918 #5 Mar 30 2012 18:58:08 %S A204918 9,25,25,25,9,49,25,25,49,49,169,49,121,121,49,25,361,121,289,49,25, %T A204918 289,841,49,529,361,841,121,961,169,841,121,169,529,289,121,1849,961, %U A204918 121,49,1849,289,1681,289,49,841,2809,121,2209,961,361,361,3481 %N A204918 Least prime p^2 such that n divides p^2-q^2 for some prime q satisfying q<p. %C A204918 For a guide to related sequences, see A204892. %t A204918 (See the program at A204916.) %Y A204918 Cf. A204916, A204908, A204900, A204892. %K A204918 nonn %O A204918 1,1 %A A204918 _Clark Kimberling_, Jan 20 2012