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 A092127 #6 Mar 28 2015 18:12:39
%S A092127 213,1133,1343,1383,1385,1835,1937,2315,2807,3091,3093,3095,3147,3977,
%T A092127 4313,4529,4835,5089,5609,5611,6185,6533,7141,8129,8131,8133,8135,
%U A092127 9753,9755,9983,9985,9987,9989,10401,10403,11013,11015,11099,11663,12053
%N A092127 Numbers n such that n, n+2, n+4, n+6, n+8 are semiprimes.
%C A092127 Semiprimes in arithmetic progression. All terms are odd, see also A056809.
%t A092127 PrimeFactorExponentsAdded[n_] := Plus @@ Flatten[Table[ #[[2]], {1}] & /@ FactorInteger[n]]; Select[ Range[ 12054], PrimeFactorExponentsAdded[ # ] == PrimeFactorExponentsAdded[ # + 2] == PrimeFactorExponentsAdded[ # + 4] == PrimeFactorExponentsAdded[ # + 6] == PrimeFactorExponentsAdded[ # + 8] == 2 &] (* _Robert G. Wilson v_, Feb 24 2004 *)
%Y A092127 Cf. A056809, A070552, A092125, A092126, A092128, A092129.
%K A092127 easy,nonn
%O A092127 1,1
%A A092127 _Zak Seidov_, Feb 22 2004