715123

Properties

Appears in sequences

• Number of arrangements of 5 numbers x(i) in -n..n with the sum of x(i)*x(i+1) equal to zero.at n=20A188360
• Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row and column sum not equal to 0 2 5 6 or 7 and every 3X3 diagonal and antidiagonal sum equal to 0 2 5 6 or 7.at n=6A252420
• Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row and column sum not equal to 0 2 5 6 or 7 and every 3X3 diagonal and antidiagonal sum equal to 0 2 5 6 or 7.at n=4A252422
• Prime numbersat n=57680