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 A175759 #7 Mar 30 2012 18:35:52 %S A175759 1,2,4,27,33,36,42,49,55,56,63,75,84,85,91,93,99,100,102,114,119,121, %T A175759 132,136,141,143,152,159,171,172,183,185,201,203,213,215,217,219,228, %U A175759 235,242,247,255,258,265,279,282,287,289,299,301,303,319,321,322,327,339 %N A175759 Numbers n such that bigomega( n+bigomega(n) ) = bigomega(n), where bigomega = A001222. %e A175759 27 is in the sequence because bigomega(27) = 3 and bigomega(27 + 3) = bigomega(30) = 3. %p A175759 with(numtheory): a := proc (n) if bigomega(n+bigomega(n)) = bigomega(n) then n else end if end proc: seq(a(n), n = 1 .. 400); %K A175759 nonn %O A175759 1,2 %A A175759 _Michel Lagneau_, Aug 28 2010