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 A211482 #7 May 15 2017 10:59:08
%S A211482 1,10,22,35,50,62,80,92,104,116,128,140,152,164,176,188,200,212,224,
%T A211482 236,248,260,272,284,296,308,320,332,344,356,368,380,392,404,416,428,
%U A211482 440,452,464,476,488,500,512,524,536,548,560,572,584,596,608,620
%N A211482 Number of ordered triples (w,x,y) with all terms in {-n,...,0,...,n} and w*x+w*y+x*y=w*x*y.
%C A211482 For a guide to related sequences, see A211422.
%F A211482 Conjectures from _Colin Barker_, May 15 2017: (Start)
%F A211482 G.f.: (1 + 8*x + 3*x^2 + x^3 + 2*x^4 - 3*x^5 + 6*x^6 - 6*x^7) / (1 - x)^2.
%F A211482 a(n) = 12*n + 8 for n>5.
%F A211482 a(n) = 2*a(n-1) - a(n-2) for n>7.
%F A211482 (End)
%t A211482 t[n_] := t[n] = Flatten[Table[w*x + w*y + x*y - w*x*y, {w, -n, n}, {x, -n, n}, {y, -n, n}]]
%t A211482 c[n_] := Count[t[n], 0]
%t A211482 t = Table[c[n], {n, 0, 80}] (* A211482 *)
%Y A211482 Cf. A211422.
%K A211482 nonn
%O A211482 0,2
%A A211482 _Clark Kimberling_, Apr 12 2012