3043040domain: NAppears in sequencesTriangle read by rows. A generalization of unsigned Lah numbers, called L[3,2].at n=31A290598Denominators of partial sums of the reciprocals of octagonal numbers.at n=7A294512Denominators of rational coefficients which are ratio of Brent's coefficients -A[n,2]/A343480.at n=49A380948