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 A179565 #11 Apr 28 2024 17:25:09 %S A179565 0,0,0,0,0,1,7,267,2235,53830,511412,11370998,122063526,2787148807, %T A179565 33618432005,817366315013,10992904020133,288039183533356, %U A179565 4284317049630762,121306011298119784,1980129988160763368,60512049675634245013,1076468156084116242851 %N A179565 Number of permutations of [n] with the number moved left exceeding the number moved right by 4. %Y A179565 Column k=4 (or k=-4) of A062866. %Y A179565 Equal number moved left and right, see A062868. %K A179565 nonn %O A179565 1,7 %A A179565 _R. H. Hardin_, Jul 19 2010 %E A179565 a(19)-a(20) from _Alois P. Heinz_, Jul 31 2018 %E A179565 a(21)-a(23) from _Alois P. Heinz_, Apr 28 2024