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 A179568 #5 Jul 22 2025 08:18:22 %S A179568 0,0,0,1,6,73,534,6095,54048,680233,7218930,102769819,1279247260, %T A179568 20545125053,294350830326,5287381093455,85819208861136, %U A179568 1708363220642257 %N A179568 Number of permutations of 1..n with the number moved left exceeding the number moved right by 2 or more. %Y A179568 Equal number moved left and right, see A062868 %K A179568 nonn %O A179568 1,5 %A A179568 _R. H. Hardin_ Jul 19 2010