83667

Appears in sequences

• Number of different ways to divide an n X n square into sub-squares, considering only the list of parts.at n=15A034295
• a(n) is root of square starting with digit 7: first term of runs.at n=7A035074
• Number of nonempty subsets of {1,2,...,n} in which exactly 2/3 of the elements are <= (n-1)/2.at n=21A047173
• Number of nonempty subsets of {1,2,...,n} in which exactly 2/3 of the elements are <= (n-2)/2.at n=21A047184
• 3p^2 where p runs through the primes.at n=38A079705
• Numbers of the form 20*k+7 which are three times a square.at n=33A192328
• Numbers p^2*q, p > q odd primes such that q divides p+1.at n=31A350245