5045040

Appears in sequences

• Triangle read by rows. A generalization of unsigned Lah numbers, called L[4,1].at n=31A048854
• Triangle formed from coefficients of the polynomials p(1)=x, p(n+1) = (n + x*(n+1))*p(n) + x*x*(d/dx)p(n).at n=33A075856
• a(n) = n*lcm{1,2,...,n}.at n=13A081528
• Smallest number of the form n*k + 1 that is divisible by all the phi(n) numbers less than n and relatively prime to n.at n=15A084715
• Least common multiple of all cycle sizes in range [A014137(n-1)..A014138(n-1)] of permutation A071663/A071664.at n=10A089871
• Numerator of the harmonic mean of the first n positive integers.at n=13A102928
• Triangle of unsigned 4-Lah numbers.at n=30A143499
• Earliest sequence such that xy | a(x+y) for all x>=1, y>=1.at n=13A169900
• Earliest sequence such that xy | a(x+y) and (x+y) | a(xy) for all x >= 1, y >= 1.at n=13A169902
• Triangle read by rows: T(0,0)=1; T(m,0)=0; otherwise T(m,n) = (m-1)*T(m-1,n)+(m-1+n)*T(m-1,n-1).at n=42A239098
• Triangle used for the integral of even powers of the sine and cosine functions.at n=22A254933
• a(n) = (A099795(n)^-1 mod p)*A099795(n), where p = prime(n).at n=6A254939
• Number T(n,k) of redundant binary trees with n inner nodes of exactly k different dimensions used for the partition of the k-dimensional hypercube by hierarchical bisection; triangle T(n,k), n>=3, 2<=k<=n-1, read by rows.at n=20A258427
• Triangle of derivatives of the Niven polynomials evaluated at 0.at n=59A303986
• Coefficient triangle of generalized Laguerre polynomials n!*L(n,n,x) (rising powers of x).at n=30A343861
• The smallest number k for which exactly n of its divisors are digitally balanced numbers in base 3 (A049354).at n=23A372146
• The smallest of the most common numbers among the multinomial coefficients n!/(x_1! * ... * x_k!) for all partitions (x_1, ..., x_k) of n.at n=14A376662
• Square array read by antidiagonals: row n lists numbers whose maximal frequency in a fixed row of A036038 (or A078760) is equal to n, i.e., numbers m such that A376663(m) = n.at n=23A376667
• Positive integers whose maximum frequency in a fixed row of A036038 (or A078760) is equal to 3, i.e., numbers m such that A376663(m) = 3.at n=4A376670