Number of distinct integers in period of continued fraction for sqrt(n), or 0 if n is a square.

Terms

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