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Smallest nonempty set S containing prime divisors of 8k+1 for each k in S.
0

%I #6 Mar 30 2012 18:35:15

%S 3,5,7,11,13,17,19,23,29,31,37,41,43,47,59,67,83,89,97,103,109,131,

%T 137,179,199,233,373,1049,1097,1223,1433,2293

%N Smallest nonempty set S containing prime divisors of 8k+1 for each k in S.

%K nonn,fini,full

%O 1,1

%A _David W. Wilson_