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 A252078 #5 Dec 13 2014 15:26:45 %S A252078 1,22,33,41,56,57,58,91,92,93,94,95,96,97,98,99,102,113,123,126,150, %T A252078 151,152,153,154,203,206,224,243,246,304,325,332,340,344,405,412,445, %U A252078 901,902,903,904,905,906,907,908,909,910,911,912,913,914,915,916,917 %N A252078 Fixed points of permutations A252001 and A252002. %C A252078 A252001(a(n)) = A252002(a(n)) = a(n). %H A252078 Reinhard Zumkeller, <a href="/A252078/b252078.txt">Table of n, a(n) for n = 1..1000</a> %o A252078 (Haskell) %o A252078 a252078 n = a252078_list !! (n-1) %o A252078 a252078_list = [x | x <- [1..], a252001 x == x] %Y A252078 Cf. A252001, A252002, A252079. %K A252078 nonn %O A252078 1,2 %A A252078 _Reinhard Zumkeller_, Dec 13 2014