Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 13 ones.

Terms

a(0) =1219a(1) =1591a(2) =2071a(3) =2107a(4) =3375a(5) =3655a(6) =4175a(7) =4399a(8) =4671a(9) =4847a(10) =4888a(11) =4891a(12) =5319a(13) =5395a(14) =6208a(15) =7067a(16) =7144a(17) =7515a(18) =11800a(19) =12328a(20) =12875a(21) =12947a(22) =13144a(23) =13199a(24) =13511a(25) =14027a(26) =14319a(27) =15151a(28) =15272a(29) =16120