34395742267
domain: N
Appears in sequences
- a(n) = numerator of harmonic number H(n) = Sum_{i=1..n} 1/i.at n=25A001008
- Numerator of the n-th harmonic number H(n) divided by (n+1); a(n) = A001008(n) / ((n+1)*A002805(n)).at n=25A002547
- Absolute value of numerator of non-Euler-constant term of Laurent expansion of Gamma function at s = -n.at n=26A060746
- Prime values of A001008, the numerators of the harmonic numbers.at n=6A067657
- Reduced numerators of the raw moments of the distribution of areas for triangles picked at random in a unit square.at n=24A093158
- Numerator of n*HarmonicNumber(n).at n=25A096617
- Let H(n) be the reduced fraction Sum_{i=1..n} 1/i. a(n) is the least factor of H(n)'s numerator or denominator that doesn't divide either part of any earlier H(m).at n=25A113571
- Numerator of absolute value of Sum_{k=1..n} (-1)^(k+1)*(2*k+1)*(Sum_{i=1..k} 1/i).at n=24A120284
- Largest prime factor of Stirling numbers of first kind s(n,2) = A000254(n).at n=24A120299
- Numerator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=1.at n=12A145609
- a(n) = squarefree part of A145609(n).at n=12A145738
- Denominator of the harmonic mean of the first n positive integers.at n=25A175441
- Least prime p such that H(n) == 0 (mod p) but H(k) == 0 (mod p) for no 0 < k < n, or 1 if such a prime p does not exist, where H(n) denotes the n-th harmonic number sum_{k=1..n}1/k.at n=25A242223
- Smallest prime factor of A001008(n), numerator of n-th harmonic number; a(1) = 1.at n=25A308970
- Largest prime factor of A001008(n), numerator of n-th harmonic number; a(1) = 1.at n=25A308971
- a(n) = numerator of Sum_{i=1..n} Sum_{j=1..n} (1/i + 1/j).at n=25A368810
- Largest squarefree number dividing the numerator of harmonic number H(n).at n=25A382213
- a(n) = numerator( (-1)^(n-1)*H(2*n)/(2*n + 1) ), where H(n) is the n-th harmonic number.at n=13A392689