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 A151742 #9 Apr 21 2020 13:11:29 %S A151742 27,33,39,45,51,57,63,69,75,81,87,92,102,106,111,117,123,129,134,138, %T A151742 143,148,153,159,165,171,177,183,188,198,202,207,212,217,222,226,231, %U A151742 237,243,249,254,258,268,273,279,285,291,297,302 %N A151742 Composite numbers which are the sum of four consecutive composite numbers. %H A151742 Harvey P. Dale, <a href="/A151742/b151742.txt">Table of n, a(n) for n = 1..1000</a> %t A151742 Select[Total/@Partition[Select[Range[100],CompositeQ],4,1],CompositeQ] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Apr 21 2020 *) %Y A151742 Cf. A151740, A151741, A151743. %K A151742 nonn %O A151742 1,1 %A A151742 _Claudio Meller_, Jun 15 2009 %E A151742 Definition clarified by _Harvey P. Dale_, Apr 21 2020