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%I #10 Sep 14 2017 03:56:20
%S 2,3,7,23,59,8209,620297,1687054711,
%T 25907979805412230144914099508240296236020415269340706571266102156690578761249,
%U 167688864076998154482920561111926793545475633249050257599724515210137245508480818512193851652306467577687209241137
%N Primes in Somos-4 sequence (A006720).
%H G. Everest et al., <a href="http://www.jstor.org/stable/27642221">Primes generated by recurrence sequences</a>, Amer. Math. Monthly, 114 (No. 5, 2007), 417-431.
%Y Cf. A006720, A129740, A129741.
%Y Cf. A192241, primes in Dana Scott's sequence (A048736).
%K nonn
%O 1,1
%A _N. J. A. Sloane_, May 13 2007
%E a(9)-a(10) from _Robert G. Wilson v_, Jul 04 2007
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