54834

Appears in sequences

• a(n) = (4*n+1)*(4*n+2)*(4*n+3).at n=9A001505
• a(n) = A259095(2n,n).at n=26A005575
• a(n) = n*(n-1)*(n-2) (or n!/(n-3)!).at n=39A007531
• a(n) = lcm(n,n+1,n+2).at n=36A033931
• Denominator of b(n)-b(n+1), where b(n) = n/((n+1)(n+2)) = A026741/A045896.at n=35A051713
• a(n) = 3*n*(3*n-1)*(3*n-2).at n=13A054776
• a(n) = lcm(3n+1, 3n+2, 3n+3).at n=12A061495
• a(n) = lcm(n, n+1, n+2, n+3, n+4) / 60.at n=35A067048
• Numbers n such that sigma(n) = phi(n) + phi(n-1) + phi(n-2) + phi(n-3).at n=5A067203
• a(n) = (2n+1)*(2n+2)*(2n+3).at n=18A069072
• Numbers n such that sum of distinct primes dividing n is divisible by the largest prime dividing n. Also n has exactly 5 distinct prime factors and n is squarefree.at n=14A071144
• a(n) = rad(n(n+1)(n+2)), where rad(m) is the largest squarefree number dividing m (see A007947).at n=36A078637
• a(n) = rad(n*(n+1)*(n+2)*(n+3)).at n=35A078638
• Squarefree numbers which are products of three consecutive numbers. I.e., squarefree numbers of the form k^3 - k.at n=6A084694
• Let B(n)(x) be the Bernoulli polynomials as defined in A001898, with B(n)(1) equal to the usual Bernoulli numbers A027641/A027642. Sequence gives denominators of B(n)(2).at n=36A100616
• Denominators of expansion of e.g.f. x^2/(2*(cos(x)-1)), even powers only.at n=18A132095
• Product of the n-th run of squarefree numbers.at n=10A136742
• Squarefree positive integers of the form u*v*(u^2-v^2) for some integer u,v.at n=28A147779
• Denominator of the sixth increasing diagonal of the autosequence of the second kind from (-1)^n/(n+1).at n=36A218289
• Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..1 2 X n array.at n=12A218898