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 A230356 #9 Dec 11 2015 12:44:50
%S A230356 10,18,27,40,45,54,63,72,90,108,117,126,135,153,160,162,171,180,207,
%T A230356 216,220,234,243,250,252,261,270,304,306,315,333,342,351,360,405,414,
%U A230356 423,432,450,490,504,513,522,531,540,603,612,621,630,640,702,711,720,801,810,931
%N A230356 Nonsquare numbers n such that digit sum of n = digit sum of square part of n.
%e A230356 135 = 2^3*5. Square part of 135 is 9. Digit_sum(135) =9, digit_sum(9) = 9.
%o A230356 (PARI)
%o A230356 digsum(n)={local (d, p); d=0; p=n; while(p, d+=p%10; p=floor(p/10)); return(d)}
%o A230356 {for (n=2, 10^3,m=n/core(n);if(digsum(n)==digsum(m)&&m<>n,print(n)));}
%Y A230356 Cf. A006753, A230354, A230355, A230357.
%K A230356 nonn,base,less
%O A230356 1,1
%A A230356 _Antonio Roldán_, Oct 16 2013