68408domain: NAppears in sequencesDenominators of continued fraction convergents to sqrt(739).at n=12A042423Number of trees on [n], rooted at 1, in which 2 is a descendant of 3.at n=7A129137Let p = n-th prime == 7 mod 8; a(n) = sum of quadratic nonresidues mod p.at n=25A282043