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 A262134 #4 Sep 11 2015 19:43:21 %S A262134 1,1,1,3,9,45,225,1575,11025,99225,893025,9823274,108056013, %T A262134 1404720092,18261352963,273907724376,4108601566641,69834315000567, %U A262134 1187167554049581,22546611220735671,428370636959431545,8988329939437212520,188741185272961560031 %N A262134 Number of permutations p of [n] such that the up-down signature of p has nonnegative partial sums with a maximal value <= 9. %H A262134 Alois P. Heinz, <a href="/A262134/b262134.txt">Table of n, a(n) for n = 0..200</a> %F A262134 a(n) = A262124(n,9). %Y A262134 Column k=9 of A262124. %K A262134 nonn %O A262134 0,4 %A A262134 _Alois P. Heinz_, Sep 11 2015