251173

Appears in sequences

• Starting with a(0) = 1, smallest number k > a(n-1) such that, for all a(m) with m < n, k + a(m) is not squarefree.at n=18A080793
• Numbers k such that sigma(k) = psi(k) + tau(k) + omega(k)^3.at n=32A392263