66944

Appears in sequences

• Number of triangles a queen can make (starting anywhere) on an n X n board.at n=32A030117
• Smallest k > n such that there are exactly n pairs (x,y) (1 <= x <= y <= k) solutions of the equation: phi(xy)=sigma(x)+sigma(y).at n=34A071780
• Numbers n such that A242720(n) = prime(n)*(prime(n)+4)+3 and A242719(n) - A242720(n) = 2*(prime(n)-1).at n=15A247279
• Composites whose prime factorization in base 5 is an anagram of the number in base 5.at n=30A260049
• Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic residues mod p.at n=25A282723