522547200

Appears in sequences

• a(1)=1; a(n) = n!*Fibonacci(n+2), n > 1.at n=9A005922
• a(n) = n!/lcm{1,2,...,n} = (n-1)!/lcm{C(n-1,0), C(n-1,1), ..., C(n-1,n-1)}.at n=17A025527
• a(n) = n!/lcm{1,2,...,n} = (n-1)!/lcm{C(n-1,0), C(n-1,1), ..., C(n-1,n-1)}.at n=18A025527
• Number of double-free subsets of {1, 2, ..., n}.at n=35A050291
• a(n) = n! + (n-1)! + (n-2)!.at n=12A054119
• Smallest number m such that GCD of d(m^2) and d(m) is 2n+1 where d(m) is the number of divisors of m.at n=19A061701
• Number of symmetric ways to lace a shoe that has n pairs of eyelets such that each eyelet has at least one direct connection to the opposite side.at n=10A078700
• Row products of A081957.at n=3A081960
• a(1) = 1; a(n) = product of n successive primes beginning with n if n is prime else product of n successive composite numbers beginning with n.at n=7A110342
• a(n) = A001783(n)/A038610(n).at n=18A128247
• Where records occur in A152235.at n=16A152453
• Partial products of A061017.at n=14A282165