6463230

Appears in sequences

• Largest squarefree number dividing n-th central binomial coefficient C(n,[ n/2 ]).at n=28A048633
• Largest squarefree number dividing n-th central binomial coefficient C(n,[ n/2 ]).at n=29A048633
• Largest squarefree number dividing central binomial coefficient A000984(n).at n=15A080397
• a(n) = lcm(1, 2, ..., 2n) / lcm(1, 2, ..., n).at n=15A093880
• The radical of the swinging factorial A056040 for odd indices.at n=14A163640
• The radical of the swinging factorial A056040.at n=29A163641
• The radical of the swinging factorial A056040.at n=30A163641
• Given n and a constant C, define a sequence b(m) by the recurrence in the comments; a(n) = smallest positive integer C such that for some prime p the denominators of all b(m) are powers of p (conjectured).at n=14A216814
• Denominators of the sequence of rational numbers Rn+ related to Bernoulli numbers.at n=14A308402
• a(n) = product of primes p such that p^k <= n < 2*p^k for some k >= 1.at n=29A366369
• a(n) = product of primes p such that p^k <= n < 2*p^k for some k >= 1.at n=30A366369
• a(1) = 1; for n > 1, a(n) = A055231(a(n-1) * n), where A055231(k) is the powerfree part of k.at n=29A368823