232551domain: NAppears in sequencesList of codewords in binary lexicode with Hamming distance 10 written as decimal numbers.at n=4A075946Basis for code in A075946.at n=2A075947Number of spanning trees in G X P_n, where G = {{1, 2}, {1, 3}, {1, 4}, {2, 3}, {2, 5}}.at n=2A167067a(n) = n * Sum_{d|n} sigma(d)^3 / d.at n=37A344043