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A020630 Smallest nonempty set S containing prime divisors of 9k+8 for each k in S. 1

%I #12 Feb 16 2013 16:52:55

%S 5,7,11,13,17,19,23,29,31,37,41,43,53,59,61,71,73,79,97,101,107,113,

%T 127,131,163,179,199,211,223,239,257,269,307,347,359,409,541,557,601,

%U 647,719,881,971,1151,1187,1481,1619,1907,1997,2347,3203,4877,5021,5417

%N Smallest nonempty set S containing prime divisors of 9k+8 for each k in S.

%H Nathaniel Johnston, <a href="/A020630/b020630.txt">Table of n, a(n) for n = 1..62</a> (full sequence)

%K nonn,fini,full

%O 1,1

%A _David W. Wilson_

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Last modified April 25 11:30 EDT 2024. Contains 371967 sequences. (Running on oeis4.)