1322685

Appears in sequences

• Least common multiple of integers less than and prime to n.at n=21A038610
• Denominator of Sum_{k=0..n} 1/binomial(n,k).at n=21A046826
• Denominator of Sum_{1<=k<=n, gcd(k,n)=1} 1/k.at n=21A069220
• Smallest number of the form n*k + 1 that is divisible by all the phi(n) numbers less than n and relatively prime to n.at n=20A084715
• Denominator of 2*Sum(C(n,w)/w,w=1..n/2-1)+C(n, n/2)/(n/2) if n is even otherwise of 2*Sum(C(n,w)/w,w=1..(n-1)/2).at n=42A085572
• a(n) = Product_{ceiling(n/2) <= k <= n, gcd(k,n)=1} k.at n=21A124442
• a(1)=1, a(n) = LCM of the integers, from 1 to n/2, which are coprime to n.at n=43A124443
• Denominator of Sum_{k=1..n} k^2*H_{n+k} where H_m = Sum_{i=1..m} 1/i.at n=11A144653
• Degrees of irreducible representations of twisted simple Chevalley group 2E6(2).at n=5A214478
• Denominators of the expectation of the process defined by randomly moving 2n balls between bins.at n=10A234600
• The positions of records in A236747.at n=28A237267
• Indices of centered square numbers (A001844) which are also centered heptagonal numbers (A069099).at n=5A253459
• Comtet's expansion of the e.g.f. (sqrt(1 + sqrt(8*s)) - sqrt(1 - sqrt(8*s)))/ sqrt(8*s * (1 - 8*s)).at n=5A334907
• The denominators of the semiderivative of the Bernoulli polynomials at x = 1 and normalized by sqrt(Pi).at n=11A346710
• Denominators of a fractional order v differentiation of the Bernoulli polynomials with v = 1/2, evaluated at x = 1 and normalized by sqrt(Pi).at n=11A346712
• a(n) = A369134(n, n).at n=19A369121
• Denominators of the expected number of steps to hit the opposite corner by simple random walk on the n-cube.at n=21A387183