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%I #7 Apr 03 2023 10:36:11
%S 509,1229,1409,2131,2311,2699,3539,6211,6449,7411,10321,10589,11549,
%T 11909,12119,17159,18121,19709,19889,22349,22531,23011,24391,26189,
%U 27479,29671,30389,31771,35311,41491,43649,46411,54601,55229,56311
%N Smallest primes starting a complete three iterations Cunningham chain of the first or second kind.
%C Terms computed by Gilles Sadowski.
%H Chris Caldwell's Prime Glossary, <a href="https://t5k.org/glossary/page.php?sort=CunninghamChain">Cunningham chains</a>.
%F Union of A059763 and A110024. [_R. J. Mathar_, May 08 2009]
%e 1409 is here because, through the operator <2p+1> for chains of the first kind, 1409 -> 2819 -> 5639 -> 11279 and the chain ends here.
%e 2131 is here because, through the operator <2p-1> for chains of the second kind, 2131 -> 4261 -> 8521 -> 17041 and the chain ends here.
%Y Cf. A023272, A023302, A023330, A005384, A005385, A059452, A059455, A007700.
%Y Cf. A059759, A059760, A059761, A059762, A059763, A059764, A059765, A038397, A104349, A091314, A069362, A016093, A014937, A057326.
%K easy,nonn
%O 1,1
%A _Alexandre Wajnberg_, Sep 03 2005
%E Edited by _R. J. Mathar_, May 08 2009
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