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 A063067 #6 Aug 20 2012 20:35:35 %S A063067 360,504,2304,2520,2880,3465,5040,5400,7920,9360,12285,12600,12672, %T A063067 13440,14400,17325,20160,23040,27720,28224,29400,30600,32760,35640, %U A063067 38080,40320,42840,47880,48384,49920,51480,57960,60480,63360,72072 %N A063067 Numbers expressible as (a^2-1)(b^2-1) in at least 2 distinct ways (b>=a>1). %H A063067 Donovan Johnson, <a href="/A063067/b063067.txt">Table of n, a(n) for n = 1..1000</a> %H A063067 K. S. Brown, <a href="http://www.mathpages.com/home/kmath275.htm">Numbers Expressible as (a^2-1)(b^2-1)</a> %e A063067 360 is on the list since 360 = (2^2-1)(11^2-1) = (4^2-1)(5^2-1). %Y A063067 Cf. A057535, A063066, A063068. %K A063067 nonn %O A063067 1,1 %A A063067 _Henry Bottomley_, Jul 08 2001