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%I #16 Oct 15 2014 15:56:16
%S 5,7,5,7,5,11,17,5,7,19,5,11,7,5,13,5,11,23,5,19,7,5,13,7,5,17,5,7,13,
%T 5,23,7,5,29,17,5,11,13,5,31,7,37,19,5,11,7,5,17,5,7,11,5,29,7,5,17,
%U 11,5,31,23,41,5,13,7,5,19,7,5,13,5,7,5,23,7,5,19,11,31,5,5,7,11,5,37,7,5,47,53,11,5,7,43,13,5,7
%N Least prime factor of A247681(n).
%H Odimar Fabeny, <a href="/A247872/b247872.txt">Table of n, a(n) for n = 2..10000</a>
%p count:= 0:
%p for n from 1 while count < 100 do
%p m:= 1+18*n;
%p if not isprime(m) then
%p count:= count+1;
%p A[count]:= min(numtheory:-factorset(m))
%p fi
%p od:
%p seq(A[i],i=1..count); # _Robert Israel_, Sep 30 2014
%Y Cf. A056608, A247681.
%K nonn,easy
%O 2,1
%A _Odimar Fabeny_, Sep 25 2014
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