480526

Appears in sequences

• a(n) = [ C(2n,n)/2^(n+2) ].at n=24A024505
• Number of (n+2)X(n+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 5 6 or 7.at n=4A252193
• Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 5 6 or 7.at n=4A252198