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 A176048 #9 Jul 11 2012 11:29:44 %S A176048 1,1,1,1,0,1,1,0,0,1,1,1,1,1,1,1,0,1,1,0,1,1,0,0,1,0,0,1,1,1,1,1,1,1, %T A176048 1,1,1,0,1,1,0,1,1,0,1,1,1,1,2,1,1,2,1,1,1,1,1,2,2,2,2,2,2,2,1,1,1,-1, %U A176048 0,1,0,1,1,0,1,0,-1,1,1,1,0,1,1,1,2,1,1,1,0 %N A176048 Triangle t(n,m) = A005185(m+1)+A005185(n-m+1)-A005185(n+1), read by rows 0<=m<=n. %e A176048 1; %e A176048 1, 1; %e A176048 1, 0, 1; %e A176048 1, 0, 0, 1; %e A176048 1, 1, 1, 1, 1; %e A176048 1, 0, 1, 1, 0, 1; %e A176048 1, 0, 0, 1, 0, 0, 1; %e A176048 1, 1, 1, 1, 1, 1, 1, 1; %e A176048 1, 0, 1, 1, 0, 1, 1, 0, 1; %p A176048 A176048 := proc(n,m) %p A176048 A005185(m+1)+A005185(n-m+1)-A005185(n+1) ; %p A176048 end proc: %p A176048 seq(seq(A176048(n,m),m=0..n),n=0..12) ; # _R. J. Mathar_, Jul 11 2012 %K A176048 sign,tabl %O A176048 0,49 %A A176048 _Roger L. Bagula_ and _Gary W. Adamson_, Apr 07 2010 %E A176048 Installed a sequence where definition and terms match, removed erroneous row sums. - _R. J. Mathar_, Jul 11 2012