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 A212059 #7 Dec 04 2016 19:46:29 %S A212059 0,0,3,9,12,21,24,34,40,49,52,70,73,82,91,106,109,127,130,148,157,166, %T A212059 169,199,205,214,224,242,245,272,275,296,305,314,323,359,362,371,380, %U A212059 410,413,440,443,461,479,488,491,536,542,560,569,587,590,620 %N A212059 Number of (w,x,y,z) with all terms in {1,...,n} and w=x*y*z-1. %C A212059 For a guide to related sequences, see A211795. %t A212059 t = Compile[{{n, _Integer}}, Module[{s = 0}, %t A212059 (Do[If[w == x*y*z - 1, s = s + 1], %t A212059 {w, 1, #}, {x, 1, #}, {y, 1, #}, {z, 1, #}] &[n]; s)]]; %t A212059 Map[t[#] &, Range[0, 60]] (* A212059 *) %t A212059 (* _Peter J. C. Moses_, Apr 13 2012 *) %Y A212059 Cf. A211795. %K A212059 nonn %O A212059 0,3 %A A212059 _Clark Kimberling_, Apr 30 2012