Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 40 ones.

Terms

a(0) =1999a(1) =2284a(2) =2461a(3) =2644a(4) =2671a(5) =2689a(6) =2956a(7) =2989a(8) =3061a(9) =3661a(10) =3697a(11) =3769a(12) =3817a(13) =4153a(14) =4201a(15) =4987a(16) =4989a(17) =5001a(18) =5101a(19) =5419a(20) =5469a(21) =5647a(22) =5812a(23) =5851a(24) =6067a(25) =6189a(26) =6281a(27) =6331a(28) =6581a(29) =6673