1036800

Appears in sequences

• Denominators of logarithmic numbers (also of Gregory coefficients G(n)).at n=9A002207
• Denominators of coefficients for repeated integration.at n=7A002688
• Triangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*12^j.at n=19A038314
• Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*10^j.at n=16A038336
• a(n) = 2*(n!)^2.at n=6A048617
• Products of distinct factorials.at n=36A058295
• Order of the subgroup of the symmetric group S_n generated by the cycles (1,3) and (1,2,3,...,n).at n=9A069660
• Numbers n such that n! is a product of distinct factorials k!*l!*m!*... with k, l, m, etc. < n.at n=37A075082
• Symmetric triangle of certain normalized products of decreasing factorials.at n=31A090441
• Symmetric triangle of certain normalized products of decreasing factorials.at n=32A090441
• a(n) = (n+2)! * (n+1)! * n! / 2.at n=4A090443
• Fifth column (m=4) of triangle A090441.at n=3A090444
• a(n) = 2(m!)^2 for n = 2m and m!(m+1)! for n = 2m+1.at n=12A092186
• a(n) = A062401(2^n + 1).at n=21A096855
• A062401(x)=phi[sigma(x)] function is iterated; initial value=2^n; a(n)=smallest term of trajectory.at n=19A097000
• a(n)=(-1)^floor(n/2)/det(M_n) where M_n is the n X n matrix of terms 1/(i+j)! i and j ranging from 1 to n.at n=3A103207
• Even refactorable numbers k such that the number r of odd divisors and the number s of even divisors are both odd divisors of k and k is the first number for which the triple (r,s,t) occurs, where t is the number of divisors of k.at n=18A120358
• Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} with k parity changes (n>=2; 1<=k <=n-1); the permutation 372185946 has 5 parity changes: 37-2-1-8-59-46.at n=40A152874
• Number of permutations of {1,2,...,n} with all odd entries preceding all even entries or all even entries preceding all odd entries.at n=12A152875
• Denominators of A002110 divided by A102647, starting from the second term of both.at n=12A165658