19093197

Appears in sequences

• a(n) = numerator of harmonic number H(n) = Sum_{i=1..n} 1/i.at n=21A001008
• Numerators of harmonic numbers when these numerators are divisible by squares of primes >= 5 in the case of Wolstenholme's Theorem.at n=6A076637
• Numerator of Sum_{1<=k<=n, gcd(k,n)=1} 1/k.at n=22A093600
• Numerator of n*HarmonicNumber(n).at n=21A096617
• Numerator of absolute value of Sum_{k=1..n} (-1)^(k+1)*(2*k+1)*(Sum_{i=1..k} 1/i).at n=20A120284
• Numerator of harmonic number H(p-1) = Sum_{k=1..p-1} 1/k for prime p.at n=8A120285
• a(n) = numerator of sum{k=1 to n} 1/A127518(k).at n=21A127519
• 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=10A145609
• Denominator of the harmonic mean of the first n positive integers.at n=21A175441
• Numbers k that are the numerator of a harmonic number such that k is divisible by the square of a prime >= 5.at n=7A322434
• a(n) = numerator of Sum_{i=1..n} Sum_{j=1..n} (1/i + 1/j).at n=21A368810