Numbers k such that the continued fraction for sqrt(k) has period 20.

Terms

a(0) =151a(1) =199a(2) =268a(3) =367a(4) =393a(5) =412a(6) =477a(7) =511a(8) =524a(9) =537a(10) =559a(11) =606a(12) =622a(13) =790a(14) =801a(15) =863a(16) =972a(17) =996a(18) =1002a(19) =1044a(20) =1065a(21) =1079a(22) =1151a(23) =1182a(24) =1195a(25) =1216a(26) =1353a(27) =1356a(28) =1374a(29) =1388