Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #5 Oct 22 2023 06:45:44
%S 31,31,31,31,1597,1597,1597,1597,37,37,37,37,1487,1487,1487,1487,47,
%T 47,47,47,1381,1381,1381,1381,61,61,61,61,1279,1279,1279,1279,79,79,
%U 79,79,1181,1181,1181,1181,101,101,101,101,1087,1087,1087,1087,127,127,127
%N This is the beginning of a Prime Chain of 224 terms consisting of the output of 2x^2 +29 repeated four times, alternating with these same terms in reverse within a procedural expression of a single polynomial.
%Y Cf. A140708.
%K nonn,uned
%O 1,1
%A Aldrich Stevens (aldrichstevens(AT)msn.com), Jul 11 2008