cp's OEIS Frontend

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.

A242716 Composite numbers of the form A242489(n) - 3.

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%I A242716 #16 Sep 22 2014 07:46:08
%S A242716 12317,50637287,147111617,5174048597
%N A242716 Composite numbers of the form A242489(n) - 3.
%C A242716 a(5) (if it exists) = A242489(k) - 3, k >= 5 * 10^7. - _Hiroaki Yamanouchi_, Sep 22 2014
%e A242716 a(1) = A242489(25) - 3 = 12317 = 109 * 113;
%e A242716 a(2) = A242489(900) - 3 = 50637287 = 7103 * 7129;
%e A242716 a(3) = A242489(1436) - 3 = 147111617 = 12097 * 12161;
%e A242716 a(4) = A242489(7084) - 3 = 5174048597 = 71789 * 72073.
%Y A242716 Cf. A242489, A242490, A242770.
%K A242716 nonn,more
%O A242716 1,1
%A A242716 _Vladimir Shevelev_ and _Peter J. C. Moses_, May 21 2014
%E A242716 a(4) from _Hiroaki Yamanouchi_, Sep 22 2014