56786730

Appears in sequences

• Denominators of Bernoulli numbers B_{2n}.at n=30A002445
• Denominators of Bernoulli numbers B_0, B_1, B_2, B_4, B_6, ...at n=31A006954
• Denominator of Bernoulli number B_n.at n=60A027642
• Denominator of Sum_{p prime, p-1 divides n} 1/p.at n=59A027760
• Denominator of Sum_{p prime, p-1 divides 2*n} 1/p.at n=29A027762
• Distinct values of denominators of Bernoulli numbers B(2n) in order of their appearance as n grows.at n=19A090126
• Incrementally largest denominators of the Bernoulli numbers.at n=9A100194
• Let B(n)(x) be the Bernoulli polynomials as defined in A001898, with B(n)(1) equal to the usual Bernoulli numbers A027641/A027642. Sequence gives denominators of B(n)(2).at n=60A100616
• Bernoulli number denominators, with zeros at the odd places.at n=60A106458
• A051717(2n).at n=30A132084
• Denominators of expansion of e.g.f. x^2/(2*(cos(x)-1)), even powers only.at n=30A132095
• a(0)=3, a(n)=A002445(n) for n >= 1.at n=30A140814
• 1 followed by A027760, a variant of Bernoulli number denominators.at n=60A141056
• Denominators of Bernoulli numbers interleaved with even numbers.at n=60A164020
• a(n) = denominator(Bernoulli(prime(n) - 1)).at n=17A166062
• Denominators of the rational sequence with e.g.f. (x/2)*(1+exp(-x))/(1-exp(-x)).at n=60A176289
• Bernoulli denominators A141056(n), with the exception a(1)=1.at n=60A176591
• Denominators of the inverse binomial transform of the Bernoulli numbers with B(1)=2/3.at n=60A257106
• a(n) = (2*n+1)*denominator((2*n+1)*Bernoulli(2*n)).at n=30A326580
• a(n) = denominator(denominator(Bernoulli'(n, x)) / denominator(Bernoulli(n, 1))).at n=60A366152