111307996800domain: NAppears in sequencesLah numbers: a(n) = n!*binomial(n-1,7)/8!.at n=7A111598(2*(n-1))! * (2*n-1)! / (n * (n-1)!^3).at n=7A248045Table read by rows. T(n, k) = n*((k + n)!)^2/((k + n)*(n!)^2*k!) for n > 0 and T(0, 0) = 1.at n=43A355005