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 A253782 #6 Jan 16 2015 10:19:11 %S A253782 16,24,32,40,48,56,64,72,80,81,88,96,104,112,120,128,135,136,144,152, %T A253782 160,162,168,176,184,189,192,200,208,216,224,232,240,243,248,256,264, %U A253782 270,272,280,288,296,297,304,312,320,324,328,336,344,351,352,360,368,376,378,384,392,400,405,408,416,424,432,440,448,456,459 %N A253782 Numbers n for which A075167(n) <> A252464(n). %H A253782 Antti Karttunen, <a href="/A253782/b253782.txt">Table of n, a(n) for n = 1..2048</a> %o A253782 (Scheme, with _Antti Karttunen_'s IntSeq-library) %o A253782 (define A253782 (NONZERO-POS 1 1 (lambda (n) (- (A075167 n) (A252464 n))))) %Y A253782 Complement: A253781. %Y A253782 Subsequence of A013929 (numbers that are not squarefree). %Y A253782 Cf. A075167, A252464. %Y A253782 Differs from A185359(n+1) for the first time at n=17, where a(17) = 135, while A185359(18) = 136. %K A253782 nonn %O A253782 1,1 %A A253782 _Antti Karttunen_, Jan 16 2015