1141620480

Appears in sequences

• Lah numbers: a(n) = n!*binomial(n-1,6)/7!.at n=6A111597
• Number of permutations where every element in binary notation has ones at the same or adjacent positions of previous element's binary ones.at n=14A115506
• (2*(n-1))! * (2*n-1)! / (n * (n-1)!^3).at n=6A248045
• Table 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=34A355005