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 A095832 #15 Jul 12 2022 07:39:14 %S A095832 0,2,0,6,2,0,12,6,2,0,20,12,6,2,0,30,20,12,6,2,0,42,30,20,12,6,2,0,56, %T A095832 42,30,20,12,6,2,0,72,56,42,30,20,12,6,2,0,90,72,56,42,30,20,12,6,2,0, %U A095832 110,90,72,56,42,30,20,12,6,2,0,132,110,90,72,56,42,30,20,12,6,2,0 %N A095832 Triangle read by rows: T(n,k) = (n-k+1)*(n-k), n>=1, 1<=k<=n. %H A095832 Michel Marcus, <a href="/A095832/b095832.txt">Rows n=1..100 of triangle, flattened</a> (terms 1..1000 from Harvey P. Dale) %e A095832 Triangle begins: %e A095832 0; %e A095832 2, 0; %e A095832 6, 2, 0; %e A095832 12, 6, 2, 0; %e A095832 20, 12, 6, 2, 0; %e A095832 ... %t A095832 Table[(n-k+1)(n-k),{n,20},{k,n}]//Flatten (* _Harvey P. Dale_, Apr 17 2016 *) %Y A095832 Cf. A002378. %K A095832 easy,nonn,tabl %O A095832 1,2 %A A095832 Herman Jamke (hermanjamke(AT)fastmail.fm), Jul 10 2004