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%I #10 Jul 10 2021 19:35:28
%S 337,509,521,569,653,865,922,929,977,1165,1493,1649,1706,1810,1985,
%T 2074,2186,2273,2309,2626,2665,2677,3349,3370,3386,3445,3922,4013,
%U 4093,4514,5021,5050,5410,5426,5458,5465,5618,5770,6586,6845,6929,7265,8066,8522
%N Numbers k such that the continued fraction for sqrt(k) has period 19.
%K nonn
%O 1,1
%A _David W. Wilson_