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%I #15 Apr 01 2024 02:39:08
%S 4681,29341,42799,49141,52633,85489,90751,104653,253241,280601,458989,
%T 580337,1004653,1082401,1207361,1251949,1302451,1678541,1907851,
%U 1909001,2419385,2510569,2811271,3090091,3539101,5044033,5049001,5173601,5489641,5590621,7177105
%N Strong pseudoprimes k to base 2 such that either k-2 or k+2 is prime.
%H Amiram Eldar, <a href="/A230487/b230487.txt">Table of n, a(n) for n = 1..10000</a> (terms 1..5001 from Shyam Sunder Gupta)
%e 4681 is a strong pseudoprime (base 2) and 4679 is prime. 253241 is a strong pseudoprime (base 2) and 253243 is prime.
%Y Union of A230483 and A230484.
%Y Cf. A001567, A001262, A230485.
%K nonn
%O 1,1
%A _Shyam Sunder Gupta_, Oct 20 2013
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