10010101110domain: NAppears in sequencesConcatenation for i=1 to n of A005171(i); also A118255 in base 2.at n=10A118256Numbers that show the distribution of prime numbers up to the n-th prime using "0" for primes and "1" for nonprime numbers.at n=4A139103Bisection of A139103.at n=2A139109