158928

Appears in sequences

• Numbers that can be expressed as the difference of the squares of primes in exactly eight distinct ways.at n=31A092004
• Molecular topological indices of the cocktail party graphs.at n=21A181773
• a(n) is the number of 2 X 2 matrices over Z_p with determinant in {1,-1} where p = prime(n).at n=13A262354
• Numbers n for which sigma(sigma(n)) = 3*sigma(n).at n=12A326181
• Numbers k such that binomial(k^2,k) == 0 (mod k^3).at n=28A371474