Period of the continued fraction for sqrt(2^(2n+1)).

Terms

a(0) =1a(1) =2a(2) =4a(3) =4a(4) =12a(5) =24a(6) =48a(7) =96a(8) =196a(9) =368a(10) =760a(11) =1524a(12) =3064a(13) =6068a(14) =12168a(15) =24360a(16) =48668a(17) =97160a(18) =194952a(19) =389416a(20) =778832a(21) =1557780a(22) =3116216a(23) =6229836a(24) =12462296a(25) =24923320a(26) =49849604a(27) =99694536a(28) =199394616a(29) =398783628