75579

Appears in sequences

• Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 1000-1111-0010 pattern in any orientation.at n=16A146401
• a(n) = (2*n+1)*(2*n+3)*(2*n+5)/3.at n=29A162540
• Numbers m such that Sum_{d|m} (tau(d)/sigma(d)) is an integer h where tau(k) = the number of the divisors of k (A000005) and sigma(k) = the sum of the divisors of k (A000203).at n=7A323781