89322

Appears in sequences

• Number of rooted trees with n points and exactly k specified colors: C(n,k), 1<=n, 1<=k<=n.at n=37A141610
• Number of rooted trees with n nodes colored using exactly 2 colors.at n=8A339642
• a(n) = floor(1/(1-s(n))) where s(n) = Sum_{k=1..n} phi(k)/k * log(2^k/(2^k-1)). phi(k) is the Euler totient function A000010(k).at n=15A383024