3203050

Appears in sequences

• Numbers n, satisfying A055231(n+1) - A055231(n) = 1, and with n and n+1 not squarefree.at n=16A140394
• Numbers k such that core(k+1) = core(k)+1 and k is not squarefree, where core(k) = A007913(k).at n=26A260198