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 A175448 #4 Jan 22 2016 15:50:16
%S A175448 2,13,17,43,47,73,107,163,167,193,197,223,227,283,317,373,467,523,557,
%T A175448 613,617,643,647,673,677,733,797,823,827,853,857,883,887,1033,1097,
%U A175448 1123,1187,1213,1217,1303,1307,1423,1427,1453,1487,1543,1607,1663,1667,1693
%N A175448 a(n)>a(n-1), a(n) = smallest prime such that a(n)+a(n-1) is multiple of m, a(1)=2, m=15.
%H A175448 Harvey P. Dale, <a href="/A175448/b175448.txt">Table of n, a(n) for n = 1..1000</a>
%t A175448 sp15[n_]:=Module[{p=NextPrime[n]},While[!Divisible[n+p,15],p = NextPrime[ p]]; p]; NestList[sp15,2,50] (* _Harvey P. Dale_, Jan 22 2016 *)
%Y A175448 Cf. A175451.
%K A175448 nonn
%O A175448 1,1
%A A175448 _Zak Seidov_, May 28 2010