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 A090761 #4 Mar 30 2012 19:01:05 %S A090761 27,49,51,53,89,91,96,97,101,168,169,176,181,184,188,189,191,195,240, %T A090761 264,285 %N A090761 Numbers n which occur at least three times in A001600. %D A090761 T. Goto and S. Shibata, All numbers whose positive divisors have integral harmonic mean up to 300, Math. Comput. 73 (2004), 475-491. %Y A090761 Cf. A001600, A090240. %K A090761 nonn,more %O A090761 1,1 %A A090761 _R. K. Guy_, Feb 08 2004