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 A167037 #12 Mar 15 2024 02:24:06 %S A167037 4225,30625,330625,422500,3062500,4515625,33062500,42250000,306250000, %T A167037 451562500,953265625,3306250000,4225000000,30625000000,39451890625, %U A167037 45156250000,95326562500,282891015625,330625000000,422500000000,3062500000000,3560297265625 %N A167037 Squares that remain squares when prefixed with a 3. %H A167037 Chai Wah Wu, <a href="/A167037/b167037.txt">Table of n, a(n) for n = 1..1000</a> %e A167037 4225 = 65^2 is a square and becomes the square 34225 = 185^2 if a 3 is attached in front. %K A167037 nonn,base %O A167037 1,1 %A A167037 _Claudio Meller_, Oct 27 2009 %E A167037 Keyword:base added by _R. J. Mathar_, Oct 28 2009 %E A167037 More terms from _Chai Wah Wu_, Sep 11 2014