307359360

Appears in sequences

• Lah numbers: a(n) = n!*binomial(n-1,5)/6!.at n=6A001778
• Central Lah numbers: a(n) = A105278(2*n,n) = A008297(2*n,n).at n=6A187535
• a(n) = binomial(n, floor(n/2))*FallingFactorial(n - 1, n - floor(n/2)).at n=12A343581
• 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=27A355005
• Number of permutations of [n] with distinct cycle lengths such that each cycle contains exactly one cycle length different from its own as an element.at n=13A364283