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 A103395 #7 Mar 30 2012 18:40:27
%S A103395 4,9,15,21,33,38,58,65,86,106,121,129,265,2049,3865,4163,8557,14005,
%T A103395 80413,104757,116333,152713,241354,2273893,2492909,16432401,31701485,
%U A103395 34090613,263504954,424792297,1534443805,3233454667,10580401481
%N A103395 Semiprimes in A103375.
%C A103395 Intersection of A103375 with A001358.
%e A103395 14005 is an element of this sequence because A103375(106) = 14005 and
%e A103395 14005 is semiprime because 14005 = 5 * 2801 where both 5 and 2801 are primes. It is coincidence here that 106 = 2 * 53 is also semiprime.
%t A103395 SemiprimeQ[n_] := Plus @@ FactorInteger[n][[All, 2]] == 2; k = 7; Do[a[n] = 1, {n, k + 1}]; a[n_] := a[n] = a[n - k] + a[n - k - 1]; Union[Select[Array[a, 255], SemiprimeQ]]
%Y A103395 Cf. A001358, A103375, A103385, A103392-A103401.
%K A103395 nonn,easy
%O A103395 1,1
%A A103395 _Jonathan Vos Post_, Feb 03 2005
%E A103395 Edited, corrected and extended by _Ray Chandler_ and _Robert G. Wilson v_, Feb 06 2005