5990985domain: NAppears in sequencesList of codewords in binary lexicode with Hamming distance 11 written as decimal numbers.at n=22A075949Odd numbers k for which A000005(2*k) >= A017665(2*k), where A000005 is the number of divisors function, and A017665 is the numerator of the abundancy ratio, sigma(k)/k.at n=23A388277