Numbers k such that the period of the continued fraction for sqrt(2)*k (A064848) is 2.

Terms

a(0) =2a(1) =3a(2) =6a(3) =10a(4) =12a(5) =17a(6) =34a(7) =35a(8) =51a(9) =58a(10) =68a(11) =70a(12) =99a(13) =102a(14) =136a(15) =198a(16) =204a(17) =338a(18) =396a(19) =408a(20) =495a(21) =577a(22) =693a(23) =990a(24) =1154a(25) =1189a(26) =1386a(27) =1731a(28) =1970a(29) =1980