133956095domain: NAppears in sequencesList of codewords in binary lexicode with Hamming distance 18 written as decimal numbers.at n=2A075970Basis for code in A075970.at n=1A075971Positions of check bits in code in A075973.at n=1A075975Numbers whose binary representation is the concatenation of n 1's, n 0's and n 1's.at n=8A145641