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 A064899 #19 Oct 13 2019 23:36:27 %S A064899 6,10,14,21,22,26,34,38,39,46,55,57,58,62,74,82,86,93,94,106,111,118, %T A064899 122,129,134,142,146,155,158,166,178,183,194,201,202,203,205,206,214, %U A064899 218,219,226,237,253,254,262,274,278,291,298,301,302,305,309,314,326 %N A064899 Numbers that are of the form pq where p and q are distinct primes that are the orders of non-Abelian groups. %H A064899 T. D. Noe, <a href="/A064899/b064899.txt">Table of n, a(n) for n = 1..1000</a> %H A064899 <a href="/index/Gre#groups">Index entries for sequences related to groups</a> %o A064899 (PARI) is(n)=my(f=factor(n)); f[,2]==[1,1]~ && f[2,1]%f[1,1]==1 \\ _Charles R Greathouse IV_, Oct 22 2015 %o A064899 (PARI) list(lim)=my(v=List()); forprime(q=3,lim\2,forprime(p=2,min(lim\q,q-1), if(q%p==1, listput(v,p*q)))); Set(v) \\ _Charles R Greathouse IV_, Oct 22 2015 %Y A064899 This is the intersection of sequences A060652 and A006881. %Y A064899 Cf. A001358, A064900-A064911. %K A064899 nonn %O A064899 1,1 %A A064899 _Patrick De Geest_, Oct 13 2001 %E A064899 Definition corrected by _Franklin T. Adams-Watters_, Oct 09 2006