%I A031606
%S A031606 325,2141,4274,6970,7306,10525,10937,14569,15053,18994,20389,24314,25253,
%T A031606 25889,30637,31337,36541,43793,47618,51701,52154,52609,53066,54449,55381,
%U A031606 62233,70537,71597,72665,80485,81050,82757,83905,85061,85642,86225,86810
%N A031606 Numbers n such that continued fraction for sqrt(n) has odd period and 
               central terms 18.
%Y A031606 Sequence in context: A158272 A031714 A133447 this_sequence A145414 A166220 
               A121000
%Y A031606 Adjacent sequences: A031603 A031604 A031605 this_sequence A031607 A031608 
               A031609
%K A031606 nonn
%O A031606 1,1
%A A031606 David W. Wilson (davidwwilson(AT)comcast.net)