Period of continued fraction for sqrt(m), m = n-th nonsquare.

Terms

a(0) =1a(1) =2a(2) =1a(3) =2a(4) =4a(5) =2a(6) =1a(7) =2a(8) =2a(9) =5a(10) =4a(11) =2a(12) =1a(13) =2a(14) =6a(15) =2a(16) =6a(17) =6a(18) =4a(19) =2a(20) =1a(21) =2a(22) =4a(23) =5a(24) =2a(25) =8a(26) =4a(27) =4a(28) =4a(29) =2