16934400

Appears in sequences

• Triangle T(n,k) read by rows: number of labeled trees with n nodes and k leaves, n >= 2, 2 <= k <= n.at n=37A055314
• Number of labeled trees with n nodes and 3 leaves.at n=6A055315
• Product_{i=1..n} (i-1)!*(i+2*n-1)!/(i+n-1)!.at n=3A055968
• Triangular sequence from coefficients of the umbral calculus expansion of a Golden -Mean Bernoulli function(A001898): p(x,t)=t*phi^(x*t)/(phi^t - 1), where the golden ratio replaces "e".at n=42A137524
• Triangle T(n,k) = SF(n+1)/(SF(n-k+1)*SF(k+1)) where SF(n) is the superfactorial A000178(n), read by rows.at n=30A156584
• Triangle T(n,k) = SF(n+1)/(SF(n-k+1)*SF(k+1)) where SF(n) is the superfactorial A000178(n), read by rows.at n=33A156584
• a(n) is the smallest multiple of a(n-1) that is greater than n^n.at n=7A178599
• Denominators of poly-Cauchy numbers c_n^(3).at n=7A224096
• Denominators of poly-Cauchy numbers of the second kind hat c_n^(3).at n=7A224103
• Number of permutations of n letters that contain exactly 3 distinguishable A's, 2 distinguishable B's and n-5 distinguishable other letters, where no A's are adjacent and no B's are adjacent.at n=6A266393
• Triangle read by rows. A generalization of unsigned Lah numbers, called L[2,1].at n=61A286724
• Triangle read by rows, T(n, k) = RisingFactorial(n - k, k) * FallingFactorial(n, k).at n=41A362588
• Terms k of A025487 such that A000005(k) = A000688(k).at n=6A369169
• Numbers k that have a record number of divisors that have the same binary weight as k.at n=32A381069