1663200

Appears in sequences

• a(n) = n!/24.at n=7A001720
• Denominator of (2/Pi)*Integral_{0..inf} (sin x / x)^n dx.at n=11A002298
• Distinct elements of A045948.at n=12A048148
• a(n) = Product_{k=1..n} rad(k), where rad(n) is the product of distinct prime factors of n, cf. A007947.at n=11A048803
• A triangle of numbers related to triangle A030526.at n=28A049353
• Decomposition of Stirling's S(n,2) based on associated numeric partitions.at n=28A058936
• Iteration of unitary-sigma function: a(1) = 2, a(n) = usigma(a(n-1)).at n=34A059460
• Number of degree-n permutations of order exactly 24.at n=10A061127
• Coefficient triangle of generalized Laguerre polynomials n!*L(n,4,x) (rising powers of x).at n=28A062140
• Numbers k such that sigma(k) - usigma(k) > 3k.at n=3A063875
• Number of permutations of {1,2,3,...,n} where the elements of n are considered indistinguishable if they differ by a power of 2 (for example 3, 12 and 24 are all considered equivalent).at n=12A067281
• Reduced root factorial of n: product of the smallest integer root of numbers from 1 to n.at n=11A068625
• a(n) = Product_{k=1..n} k/floor(n/k).at n=12A076000
• Square roots of squares pertaining to A076123.at n=9A076124
• Triangle T(n,k) of associated Lah numbers, n>=2, k=1..floor(n/2).at n=29A076126
• a(n) = (2/3)*(2*n-1)!*binomial(3*n,2*n).at n=3A082787
• Triangle read by rows: T(n,k)=(n+k)!/k! (0<=k<=n-1; n>=1).at n=25A105725
• Lah numbers: a(n) = n!*binomial(n-1,6)/7!.at n=4A111597
• A008279, with the first and last of each row removed.at n=51A119741
• Smallest number m having exactly n divisors d with sqrt(m/2) <= d < sqrt(2*m).at n=28A128605