86021

Appears in sequences

• a(n) = numerator of harmonic number H(n) = Sum_{i=1..n} 1/i.at n=11A001008
• a(n) = (1/1 + 1/2 + ... + 1/n)*lcm{1,2,...,n}.at n=11A025529
• Numerators of alternating sum transform (PSumSIGN) of Harmonic numbers H(n) = A001008/A002805.at n=23A035048
• Absolute value of numerator of non-Euler-constant term of Laurent expansion of Gamma function at s = -n.at n=12A060746
• Numerators of harmonic numbers when these numerators are divisible by squares of primes >= 5 in the case of Wolstenholme's Theorem.at n=3A076637
• Numerator of Sum_{1<=k<=n, gcd(k,n)=1} 1/k.at n=12A093600
• Numbers which are numerators of at least one reduced rational sum{k=1 to m} 1/k^n, taken over all positive integers m and n.at n=36A094509
• Numerator of n*HarmonicNumber(n).at n=11A096617
• Numerator of absolute value of Sum_{k=1..n} (-1)^(k+1)*(2*k+1)*(Sum_{i=1..k} 1/i).at n=10A120284
• Numerator of harmonic number H(p-1) = Sum_{k=1..p-1} 1/k for prime p.at n=5A120285
• a(n) = numerator of sum{k=1 to n} 1/A127518(k).at n=11A127519
• 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=5A145609
• Integers n such that 17+30*n are terms in A172456.at n=30A175103
• Denominator of the harmonic mean of the first n positive integers.at n=11A175441
• Maximal possible numerator for a sum of the form 1 +/- 1/2 +/- 1/3 +/- ... +/- 1/n.at n=11A231606
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 393", based on the 5-celled von Neumann neighborhood.at n=16A281742
• Numbers k that are the numerator of a harmonic number such that k is divisible by the square of a prime >= 5.at n=4A322434
• a(n) = numerator of Sum_{i=1..n} Sum_{j=1..n} (1/i + 1/j).at n=11A368810