Number of (n+2) X (6+2) 0..1 arrays with every 3 X 3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally and vertically.
A254892
Number of (n+2) X (6+2) 0..1 arrays with every 3 X 3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally and vertically.
Terms
- a(0) =404672a(1) =1662439a(2) =8115610a(3) =51232136a(4) =112212755a(5) =290329276a(6) =758297009a(7) =1538743336a(8) =3144214353a(9) =6262873752a(10) =11542342124a(11) =21147758655a(12) =38139458456a(13) =66602951730a(14) =116033750607a(15) =199967861523a(16) =341342073822a(17) =584866227788
External references
- oeis: A254892