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 A173968 #7 Nov 05 2023 09:02:33
%S A173968 102,258,282,366,426,606,642,654,906,1182,1338,1902,2094,2526,2766,
%T A173968 3126,3414,3786,4038,4206,4926,5286,5514,5682,5826,5946,6306,6546,
%U A173968 6654,6918,7086,7302,7386,7554,7926,8166,8202,9294,10158,10806,11082,11598,11706
%N A173968 Sums of 3 consecutive semiprimes.
%C A173968 33 + 34 + 35 = 102,..
%t A173968 f[n_]:=Last/@FactorInteger[n]=={1,1}||Last/@FactorInteger[n]=={2};lst={};Do[If[f[n],If[f[n+1]&&f[n+2],AppendTo[lst,3*n+3]]],{n,8!}];lst
%Y A173968 Cf. A001358, A173966, A173967.
%K A173968 nonn
%O A173968 1,1
%A A173968 _Vladimir Joseph Stephan Orlovsky_, Mar 03 2010