1722932

Appears in sequences

• Number of n X 5 0..1 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.at n=25A223835
• Numbers k such that psi(k) = psi(k + 2) and phi(k) = phi(k + 2), where psi(k) is the Dedekind psi function (A001615) and phi(k) is the Euler totient function (A000010).at n=32A330702