Number of (n+2) X (3+2) 0..1 arrays with every 3 X 3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally and vertically.
A254478
Number of (n+2) X (3+2) 0..1 arrays with every 3 X 3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally and vertically.
Terms
- a(0) =12260a(1) =50454a(2) =211579a(3) =686988a(4) =2289173a(5) =7113819a(6) =22624962a(7) =68677228a(8) =207208428a(9) =608944631a(10) =1780628620a(11) =5159525456a(12) =14933521713a(13) =43117561790a(14) =124499677479a(15) =359267692474
External references
- oeis: A254478