n-th bit in binary expansion of square root of n.

Terms

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