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 A118761 #5 Mar 30 2012 18:50:54 %S A118761 0,1,2,3,4,5,6,7,8,9,20,21,22,23,24,25,26,27,28,29,40,41,42,43,44,45, %T A118761 46,47,48,49,60,61,62,63,64,65,66,67,68,69,80,81,82,83,84,85,86,87,88, %U A118761 89,119,138,157,176,195,310,339,358,377,396,559,578,597,779,798,999,3130 %N A118761 Fixed points of permutations A118757, A118758, A118759 and A118760. %C A118761 A118757(a(n)) = A118758(a(n)) = A118759(a(n)) = A118760(a(n)) = a(n); %C A118761 a(n) = A024657(n-1) = A102491(n) for n<=50. %Y A118761 Cf. A118767. %K A118761 nonn %O A118761 1,3 %A A118761 _Reinhard Zumkeller_, May 01 2006