1111968000domain: NAppears in sequencesTheta series of (putative) extremal 3-modular even lattice in dimension 80.at n=7A034650Denominators of the fractions f(n) such that (6/Pi^2)*f(n) is the asymptotic density of the numbers k with A280292(k) = sopfr(k) - sopf(k) = n.at n=15A338560