The Ehrenfeucht-Mycielski sequence (1,2-version): a maximally unpredictable sequence.

Terms

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