490770domain: NAppears in sequencesTheta series of (putative) extremal 3-modular even lattice in dimension 38.at n=4A034629Denominators of continued fraction convergents to sqrt(568).at n=11A042089Integers z such that there exist two integers 0<x<=y<=z such that psi(x) = psi(y) = psi(z) = x + y + z.at n=11A386933