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 A194284 #13 Mar 31 2012 10:28:58 %S A194284 12,45,63,75,99,153,175,245,261,325,363,369,475,531,539,637,639,833, %T A194284 845,847,867,909,925,963,1075,1127,1183,1233,1341,1519,1573,1611,1675, %U A194284 1719,1773,1805,1813,1859,1975 %N A194284 Entries n of A194234 for which the cototient A051953(n) is a composite number. %K A194284 nonn,easy %O A194284 1,1 %A A194284 _Naohiro Nomoto_, Oct 12 2011