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 A226886 #8 Sep 26 2017 14:55:06
%S A226886 5040,20160,151200,907200,6431040,42577920,326280240,2437475040,
%T A226886 15076381320,101442781440,685186844160,4578510605760,31826713309344,
%U A226886 215132601512160,1519348223060640,9879977905237440,67264821737934744,453057807190266432,3094793914863208800
%N A226886 Number of n-length words w over a 7-ary alphabet {a1,a2,...,a7} such that #(w,a1) >= #(w,a2) >= ... >= #(w,a7) >= 1, where #(w,x) counts the letters x in word w.
%H A226886 Alois P. Heinz, <a href="/A226886/b226886.txt">Table of n, a(n) for n = 7..1000</a>
%Y A226886 Column k=7 of A226874.
%K A226886 nonn
%O A226886 7,1
%A A226886 _Alois P. Heinz_, Jun 21 2013