%I
%S 1,2,2,6,1170,64590,25153800,25153800,4747505070,207187349040,
%T 6703860240000,26997529639080,1760354281625940,1760354281625940,
%U 10718654377787155800
%N a(n) is the smallest number m such that (2k1)m+1 is prime for all 0<k<n+1.
%Y Cf. A088250, A071576, A164326, A088251, A088651, A125838, A125839, A088252.
%K more,nonn
%O 1,2
%A _Farideh Firoozbakht_, Sep 15 2009
%E a(5) corrected by Zak Seidov, Sep 16 2009
%E a(10) and a(11) from _Zak Seidov_, Sep 17 2009
%E a(12)=26997529639080 from _Zak Seidov_, Sep 25 2009
%E a(13)a(15) from _Giovanni Resta_, Apr 01 2017
