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 A234841 #8 Jan 02 2014 10:21:11 %S A234841 0,1,2,3,4,5,6,7,12,13,15,16,17,34,35,37,38,67,116,117,167,334,335, %T A234841 337,367,667,1667,3334,3335,3337,3367,3667,6667,16667,33334,33335, %U A234841 33337,33367,33667,36667,66667,166667,333334,333335,333337,333367,333667,336667 %N A234841 Integers n such that digits in n and n^2 are in nondecreasing order. %H A234841 Zak Seidov, <a href="/A234841/b234841.txt">Table of n, a(n) for n = 1..96</a> %t A234841 Select[Range[0,500000],LessEqual@@IntegerDigits[#]&&LessEqual@@IntegerDigits[#^2]&](* _Ray Chandler_, Jan 02 2014 *) %Y A234841 Intersection of A009994 and A028819. %K A234841 base,nonn %O A234841 1,3 %A A234841 _Zak Seidov_, Dec 31 2013