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 A179567 #7 Jul 22 2025 08:18:15 %S A179567 0,0,1,5,37,219,1823,13831,139879,1321535,15951919,181202031, %T A179567 2549722415,33883956911,545091050671,8301190456511,150332113604031, %U A179567 2581953013032639 %N A179567 Number of permutations of 1..n with the number moved left exceeding the number moved right by 1 or more. %Y A179567 Equal number moved left and right, see A062868. %Y A179567 Equals (n!-A062868(n))/2. %K A179567 nonn %O A179567 1,4 %A A179567 _R. H. Hardin_ Jul 19 2010