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 A075293 #6 Mar 30 2012 17:26:03
%S A075293 198,342,414,522,846,1062,1278,1854,1962,2034,2826,3006,3114,3258,
%T A075293 3582,4338,4518,5706,6282,6714,7758,8226,8838,9054,11538,13374,13518,
%U A075293 14166,14562,15354,15534,16326,17838,18918,19962,20718,20934,21078,21258
%N A075293 Interprimes which are of the form s*prime, s=18.
%C A075293 Interprimes of the form s*prime are in A075277-A075296 ( s = 2 - 21 ). Case s=1 is impossible.
%e A075293 414 is an interprime and 414/18 = 23 is prime.
%t A075293 s=18; Select[Table[(Prime[n+1]+Prime[n])/2, {n, 2, 4000}], PrimeQ[ #/s]&]
%Y A075293 Cf. A075277-A075296.
%K A075293 easy,nonn
%O A075293 1,1
%A A075293 _Zak Seidov_, Sep 12 2002