77957

Appears in sequences

• Numbers k such that phi(k) is equal to A008473(k+1).at n=14A039781
• a(n) = floor(M(g(n-1)+1,..,g(n))), where M = harmonic mean and g(n) = n*(n + 1)*(n + 2)*(n + 3)/24.at n=35A227018