635440

Appears in sequences

• Number of n X n arrays of squares of integers summing to 4.at n=6A159355
• a(n) = (prime(n) - 7)^2 * (4*prime(n) - 1).at n=16A245035
• Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum.at n=2A258676
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum.at n=12A258681