Period of base 4 representation of 1/n.

Terms

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