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 A176540 #14 Dec 31 2015 11:07:49
%S A176540 1,4,6,9,10,14,15,21,22,25,26,33,34,35,38,39,46,49,51,55,57,58,62,65,
%T A176540 69,74,77,82,85,86,87,91,93,94,95,106,111,115,118,119,121,122,123,129,
%U A176540 133,134,141,142,143,145,146,155,158,159,161,166,169,177,178,183,185,187
%N A176540 1 together with the semiprimes.
%C A176540 The products of two noncomposite numbers that do not contain prime numbers.
%t A176540 Join[{1},Select[Range[200],PrimeOmega[#]==2&]] (* _Harvey P. Dale_, Dec 31 2015 *)
%Y A176540 Cf. A001358, A037143.
%K A176540 nonn
%O A176540 1,2
%A A176540 _Juri-Stepan Gerasimov_, Apr 19 2010
%E A176540 Definition and comment swapped by _Michel Marcus_, Aug 09 2014