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

Terms

a(0) =2a(1) =5a(2) =10a(3) =13a(4) =17a(5) =26a(6) =29a(7) =37a(8) =41a(9) =50a(10) =53a(11) =58a(12) =61a(13) =65a(14) =73a(15) =74a(16) =82a(17) =85a(18) =89a(19) =97a(20) =101a(21) =106a(22) =109a(23) =113a(24) =122a(25) =125a(26) =130a(27) =137a(28) =145a(29) =149