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 A279297 #4 Dec 09 2016 15:29:43 %S A279297 1,20,4280,127917,6402984,208910728,7440888001,237920318012, %T A279297 7682498246390,241437687882797,7610900307811180,239466123419848086, %U A279297 7589962647890648579,242520044163828141976,7839783867491553405462,256717246780820798056943,8529320594216231644881865 %N A279297 Number of permutations of [n] having exactly eight (possibly overlapping) doubledescents. %H A279297 Alois P. Heinz, <a href="/A279297/b279297.txt">Table of n, a(n) for n = 10..459</a> %Y A279297 Column k=8 of A162975. %K A279297 nonn %O A279297 10,2 %A A279297 _Alois P. Heinz_, Dec 09 2016