74764

Appears in sequences

• Numbers k such that k-3, k-5, k-17, k-257, and k-65537 are all primes.at n=3A063825
• Number of 8 X 8 arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to n.at n=9A156396
• Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 9.at n=7A156449