5019589575

Appears in sequences

• Least common multiple of {1,3,5,...,2n-1}.at n=13A025547
• Denominators of alternating sum transform (PSumSIGN) of Harmonic numbers H(n) = A001008/A002805.at n=26A035047
• Oddly colossally abundant numbers.at n=10A110464
• Denominators of partial sums for a series for Pi/3.at n=12A130414
• Denominator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=4.at n=13A145616
• Denominator of the polynomial A_l(x) = Sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=8.at n=13A145624
• Numbers with exactly 8 distinct odd prime divisors {3,5,7,11,13,17,19,23}.at n=17A147581
• Odd part of lcm(1,2,3,...,n).at n=26A217858
• Odd part of lcm(1,2,3,...,n).at n=27A217858
• Denominator of Sum_{k=1..2n+1} 2^k/k.at n=13A229726
• Number of possible plugboard settings for a WWII German Enigma Cipher Machine with n cables.at n=5A266365
• Denominators of the Kirchhoff (and Harary) index for the n-hypercube graph.at n=27A290344
• Denominators of the Kirchhoff (and Harary) index for the n-hypercube graph.at n=28A290344
• Denominators of the partial sums of the Möbius transform of the harmonic numbers.at n=26A334313
• Denominators of Sum_{j=0..n} 1/(2*j+1), for n >= 0.at n=13A350670
• Denominator of Sum_{k=0..n} (-1)^k / (2*k+1).at n=13A352395
• a(n) = denominator(R(2*n + 1, 2*n + 1, 1)) where R(n, k, x) = Sum_{u=0..k} ( Sum_{j=0..u} x^j * binomial(u, j) * (j + 1)^n ) / (u + 1).at n=13A362999
• a(n) = denominator(R(n, n, 1)) where R(n, k, x) = Sum_{u=0..k} ( Sum_{j=0..u} x^j * binomial(u, j) * (j + 1)^n ) / (u + 1).at n=27A363001
• a(n) is the denominator of x(n) = (2*x(n-1) + 1/n) mod 1, with x(0) = 0.at n=27A374333
• Denominators of the expected number of steps to hit the opposite corner by simple random walk on the n-cube.at n=28A387183