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 A227601 #3 Jul 17 2013 15:04:28 %S A227601 1,1,58786,72686739116,569413385415535738,15313737501505148093502344, %T A227601 1003769793669980634048599763674485, %U A227601 129559009610760457771091688202936893773393,28544115728527488452514857447327666866636823456709 %N A227601 Number of lattice paths from {n}^10 to {0}^10 using steps that decrement one component such that for each point (p_1,p_2,...,p_10) we have p_1<=p_2<=...<=p_10. %p A227601 b:= proc(l) option remember; `if`(l[-1]=0, 1, add(add(b(subsop( %p A227601 i=j, l)), j=`if`(i=1, 0, l[i-1])..l[i]-1), i=1..nops(l))) %p A227601 end: %p A227601 a:= n-> `if`(n=0, 1, b([n$10])): %p A227601 seq(a(n), n=0..10); %Y A227601 Column k=10 of A227578. %K A227601 nonn %O A227601 0,3 %A A227601 _Alois P. Heinz_, Jul 17 2013