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 A095169 #5 Dec 05 2013 19:56:51
%S A095169 1,4,9,14,30,26,63,48,66,72,176,90,247,119,144,168,425,198,551,230,
%T A095169 270,290,828,327,445,394,474,470,1305,519,1426,592,636,680,749,756,
%U A095169 2072,838,903,926,2624,978,2881,1058,1130,1194,3337,1266,1582,1356
%N A095169 Leading diagonal of the triangle A095167.
%o A095169 (PARI) S=Set(); for(n=2,20, k=0; m=1; while(k<n, m++; if(!setsearch(S,m) && gcd(m,n)>1, S=setunion(S,[m]); k++) ); print1(" ",m) ) (Alekseyev)
%Y A095169 Cf. A095167, A095168, A095170, A095171.
%K A095169 nonn
%O A095169 1,2
%A A095169 _Amarnath Murthy_, Jun 01 2004
%E A095169 More terms from _Max Alekseyev_, Jun 30 2005