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 A167035 #17 Mar 08 2024 01:13:39 %S A167035 225,5625,22500,562500,2250000,5405625,23765625,56250000,225000000, %T A167035 540562500,2127515625,2376562500,5625000000,22500000000,54056250000, %U A167035 58503515625,212751562500,237656250000,562500000000,2250000000000,5405625000000,5850351562500 %N A167035 Squares that remain squares if prefixed with a 1. %H A167035 Chai Wah Wu, <a href="/A167035/b167035.txt">Table of n, a(n) for n = 1..1000</a> %e A167035 225 = 15^2 is a square and becomes the square 1225 = 35^2 if a 1 is attached in front. %K A167035 base,nonn %O A167035 1,1 %A A167035 _Claudio Meller_, Oct 27 2009 %E A167035 Comment turned into example by _R. J. Mathar_, Oct 28 2009 %E A167035 More terms from _Chai Wah Wu_, Sep 11 2014