85722

Appears in sequences

• a(n) = S2(n,4), where S2(n, t) = Sum_{k=0..n} k^t *(Sum_{j=0..k} binomial(n,j))^2.at n=4A089667
• Numbers n such that the denominator of the 2n-th Bernoulli number is divisible by n but sum_{d|n} sigma(d)/phi(d) is not an integer.at n=27A099008
• Numbers n such that phi(n) divides Sum_{k=1..n} phi(k).at n=47A194855