Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally and vertically.
A254481
Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally and vertically.
Terms
- a(0) =586508a(1) =1990286a(2) =7113819a(3) =28312934a(4) =71273789a(5) =205535751a(6) =540249256a(7) =1390563554a(8) =3531296333a(9) =9326702364a(10) =24557509678a(11) =66549724018a(12) =180324669249a(13) =491322127557
External references
- oeis: A254481