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 A105665 #6 Oct 09 2013 05:56:56 %S A105665 1,5,4,7,17,6,9,55,10,12,2485,14,14,102,20,17,62,27,19,49,39,23,44,56, %T A105665 25,40,93,30,39,194,33,38,2486,41,39,282,48,39,146,60,42,106,77,44,85, %U A105665 107,48,75,163,51,68,320,58,66,2485,65,63,486,77,63,237,92,63,163,116 %N A105665 a(n) = abs(floor(n/cos(n))). %o A105665 (PARI) a(n) = abs(floor(n/cos(n))); \\ _Michel Marcus_, Oct 09 2013 %Y A105665 Cf. A105666. %K A105665 nonn %O A105665 1,2 %A A105665 _Zak Seidov_, May 04 2005