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 A179564 #8 Apr 28 2024 17:26:23 %S A179564 0,0,0,0,1,6,134,960,16615,138022,2425600,23279224,444500577, %T A179564 4880181294,102914967458,1277238809792,29767443364523,412889949481670, %U A179564 10588965173821348,162515224089696984,4560137456338593333,76773519570724122126,2343258977445039475014 %N A179564 Number of permutations of 1..n with the number moved left exceeding the number moved right by 3. %Y A179564 Column k=3 (or k=-3) of A062866. %Y A179564 Equal number moved left and right, see A062868. %K A179564 nonn %O A179564 1,6 %A A179564 _R. H. Hardin_, Jul 19 2010 %E A179564 a(19)-a(20) from _Alois P. Heinz_, Jul 31 2018 %E A179564 a(21)-a(23) from _Alois P. Heinz_, Apr 28 2024