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 A182585 #7 May 16 2012 12:27:46
%S A182585 34,169,194,985,4181,9077,14701,51641,135137,294685,499393,646018,
%T A182585 925765,1136689,1346269,2012674,6625109,8399329,9647009,11485154,
%U A182585 16964653,21531778,43484701,48928105,111242465,137295677,144059117,165580141,225058681,253191266
%N A182585 Markov numbers that are semiprime.
%C A182585 This is to A178444 as semiprimes A001358 are to primes A000040.
%F A182585 A001358 Intersection A002559. {x, y, or z satisfying x^2 + y^2 + z^2 = 3xyz, also such that A001222(of that number) = 2}.
%e A182585 194 is in this sequence because it is a Markoff (or Markov) number, and 194 = 2 * 97.
%Y A182585 Cf. A001358, A002559, A178444.
%K A182585 nonn,easy
%O A182585 1,1
%A A182585 _Jonathan Vos Post_, May 06 2012