2974571600

Appears in sequences

• a(n) = LCM(1,2,...,n) / n.at n=26A002944
• Denominator of n * n-th harmonic number.at n=26A027611
• Least common multiple of integers less than and prime to n.at n=26A038610
• Denominator of Sum_{1<=k<=n, gcd(k,n)=1} 1/k.at n=26A069220
• Duplicate of A002944.at n=26A081529
• Denominator of b(n), where Sum_{k>=1} b(k)/k^r = 1/(Sum_{k>=1} H(k)/k^r). H(k) = Sum_{j=1..k} 1/j, the k-th harmonic number.at n=26A097504
• Denominator of Sum_{k=0..[n/2]} 1/binomial(n,k).at n=26A100561
• Denominator of 1^n/n + 2^n/(n-1) + 3^n/(n-2) + ... + (n-1)^n/2 + n^n/1.at n=25A120487
• a(n) = LCM of the integers, from n/2 to n, which are coprime to n.at n=26A124444
• a(n) = floor((denominator of H(n))/n), where H(n) = Sum_{k=1..n} 1/k, the n-th harmonic number.at n=26A128438
• a(n) = lcm{1 <= k <= n, gcd(k, 3) = 1}.at n=25A128501
• a(n) = lcm{1 <= k <= n, gcd(k, 3) = 1}.at n=26A128501
• a(n) = lcm{1 <= k <= n, gcd(k, 3) = 1}.at n=27A128501
• a(n) = lcm{1 <= k <= n, gcd(k, 3) = 1}.at n=28A128501
• Denominator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=3.at n=12A145614
• Denominator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=9.at n=12A145626
• Denominator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=9.at n=13A145626
• Denominator of smallest nonnegative fraction of form +- 1 +- 1/2 +- 1/3 ... +- 1/n.at n=25A232112
• Denominator of Sum_{i=1..n} n^i/i.at n=26A237873
• Denominator of sum of fractions A182972(k) / A182973(k) such that A182972(k) + A182973(k) = n.at n=24A245678