38330

Appears in sequences

• Numbers n such that sigma(n)=2n-phi(phi(n)).at n=22A110073
• a(n) = 1681*n^2 - 756*n + 85.at n=4A157010
• Number of pairs (lambda,mu) of partitions lambda of n and mu of five with mu <= lambda (by diagram containment).at n=25A303855