Write the n-th prime in binary and change all 0's to 1's and all 1's to 0's.

Terms

a(0) =1a(1) =0a(2) =10a(3) =0a(4) =100a(5) =10a(6) =1110a(7) =1100a(8) =1000a(9) =10a(10) =0a(11) =11010a(12) =10110a(13) =10100a(14) =10000a(15) =1010a(16) =100a(17) =10a(18) =111100a(19) =111000a(20) =110110a(21) =110000a(22) =101100a(23) =100110a(24) =11110a(25) =11010a(26) =11000a(27) =10100a(28) =10010a(29) =1110