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 A276554 #34 Jul 04 2018 11:58:00
%S A276554 1,1,0,1,-1,0,1,-2,-2,0,1,-3,-3,-1,0,1,-4,-3,2,0,0,1,-5,-2,8,6,4,0,1,
%T A276554 -6,0,16,12,12,4,0,1,-7,3,25,13,9,1,7,0,1,-8,7,34,5,-12,-29,-10,3,0,1,
%U A276554 -9,12,42,-15,-51,-78,-54,-32,-2,0,1,-10,18,48,-49,-102
%N A276554 Square array A(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of Product_{j>=1} (1-x^j)^(j*k) in powers of x.
%H A276554 Seiichi Manyama, <a href="/A276554/b276554.txt">Antidiagonals n = 0..139, flattened</a>
%F A276554 G.f. of column k: Product_{j>=1} (1-x^j)^(j*k).
%e A276554 Square array begins:
%e A276554 1, 1, 1, 1, 1, ...
%e A276554 0, -1, -2, -3, -4, ...
%e A276554 0, -2, -3, -3, -2, ...
%e A276554 0, -1, 2, 8, 16, ...
%e A276554 0, 0, 6, 12, 13, ...
%Y A276554 Columns k=0-5 give: A000007, A073592, A276551, A276552, A316463, A316464.
%Y A276554 Main diagonal gives A281267.
%Y A276554 Antidiagonal sums give A299211.
%Y A276554 Cf. A255961, A277938.
%K A276554 sign,tabl
%O A276554 0,8
%A A276554 _Seiichi Manyama_, Apr 10 2017