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 A105666 #5 Oct 09 2013 05:56:41 %S A105666 1,2,21,6,6,22,10,8,21,19,12,23,30,14,23,56,18,24,126,21,25,2486,28, %T A105666 27,189,34,28,103,44,31,77,58,33,64,82,37,58,128,40,53,259,46,52,2485, %U A105666 52,51,380,63,52,191,76,52,133,97,56,108,130,58,92,197,64,84,376,69,78 %N A105666 a(n) = abs(floor(n/sin(n))). %o A105666 (PARI) a(n) = abs(floor(n/sin(n))) \\ _Michel Marcus_, Oct 09 2013 %Y A105666 Cf. A105665. %K A105666 nonn %O A105666 1,2 %A A105666 _Zak Seidov_, May 04 2005