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%I #12 Oct 16 2014 14:06:37
%S 5,15,705,2795,14105,18645,38547,43485,53915,57957,62417,76287,82355,
%T 94445,96657,145937,162605,178817,180677,184877,193625,234017,238887,
%U 256557,261017,287835,297815,334007,339525,346425,387297,399387,407145,417597,418845,419147
%N Numbers, p, that generate the prime quadruplets p^2-2p+2k (for k = -2, -1, 1, 2).
%C For a subset of this list, restricted only to primes, see A247845.
%e 5 is in the sequence as it generates the prime quadruplet 5^2-2*5-4=11; 5^2-2*5-2=13; 5^2-2*5+2=17; and, 5^2-2*5+4=19.
%o (PARI) lista(nn) = {vk = [-2, -1, 1, 2]; for (p = 2, nn, nb = 0; for (k = 1, 4, nb += isprime(p^2-2*p+2*vk[k]);); if (nb == 4, print1(p, ", ")););} \\ _Michel Marcus_, Sep 26 2014
%Y Cf. A247845 (subsequence of primes).
%K nonn
%O 1,1
%A _Ray G. Opao_, Sep 25 2014
%E More terms from _Michel Marcus_, Sep 26 2014
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