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 A083755 #6 Aug 25 2014 12:00:21 %S A083755 13,137,13711,137119,13711927,1371192763,137119276331,13711927633153, %T A083755 1371192763315321,137119276331532113,13711927633153211383, %U A083755 1371192763315321138333,137119276331532113833339,13711927633153211383333949,1371192763315321138333394951,137119276331532113833339495177,13711927633153211383333949517787 %N A083755 Primes arising in A083754. %C A083755 Also all terms above after a(4) have been certified prime with Primo. See A083754 for programs to generate this sequence. - _Rick L. Shepherd_, May 09 2003 %Y A083755 Cf. A083754. %K A083755 base,nonn %O A083755 1,1 %A A083755 _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 06 2003 %E A083755 More terms from _Rick L. Shepherd_, May 09 2003