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 A161966 #5 Jul 16 2015 22:50:25 %S A161966 2,2,2,2,2,3,2,2,2,2,2,3,3,2,5,2,2,2,2,2,2,2,2,2,2,2,2,3,3,2,2,2,2,2, %T A161966 2,2,2,3,2,2,2,7,2,2,3,5,2,2,2,2,2,3,2,2,3,2,5,2,2,3,3,2,2,5,2,2,3,2, %U A161966 2,11,2,2,2,2,3,3,3,2,2,2,2,2,2,2,3,2,3,2,2,2,2,2,5,3,2,2,2,2,2,2,2,7,2,2,3 %N A161966 Primes in A161849 in order of appearance. %C A161966 A052369(k) mod A056608(k) where prime. %C A161966 The remainder of the division of the largest by the smallest prime divisor of the k-th composite, discarding all nonprime results, as k increases. %e A161966 The first seven entries of A161849 are not prime, and a(1)=A161849(8)=2 is the first one selected. %e A161966 The entries A161849(9..20) are not prime, and a(2)=A161849(21) is the next one selected. %Y A161966 Cf. A002808, A052369, A056608. %K A161966 nonn %O A161966 1,1 %A A161966 _Juri-Stepan Gerasimov_, Jun 23 2009 %E A161966 Edited and extended by _R. J. Mathar_, Aug 02 2009