Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the central row and central column plus the two minimums of the diagonal and antidiagonal nondecreasing horizontally and vertically.
A254916
Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the central row and central column plus the two minimums of the diagonal and antidiagonal nondecreasing horizontally and vertically.
Terms
- a(0) =2812a(1) =19890a(2) =127758a(3) =705398a(4) =3788492a(5) =20154545a(6) =104789699a(7) =539308818a(8) =2760965456a(9) =14069458108a(10) =71431677779a(11) =361454282791
External references
- oeis: A254916