Number of (n+2) X (5+2) 0..1 arrays with every 3 X 3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally and vertically.
A257206
Number of (n+2) X (5+2) 0..1 arrays with every 3 X 3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally and vertically.
Terms
- a(0) =72249a(1) =191070a(2) =263630a(3) =594621a(4) =654637a(5) =640929a(6) =958492a(7) =1132789a(8) =1248657a(9) =1572262a(10) =1941929a(11) =2373418a(12) =2905927a(13) =3560325a(14) =4385532a(15) =5356772a(16) =6499076a(17) =7803937a(18) =9358455a(19) =11231036a(20) =13326754a(21) =15731695a(22) =18564935a(23) =21844896a(24) =25557915a(25) =29764072a(26) =34644954
External references
- oeis: A257206