Number of (4+1)X(n+1) 0..2 arrays with every 2X2 subblock sum nondecreasing horizontally, vertically and antidiagonally ne-to-sw.
A253378
Number of (4+1)X(n+1) 0..2 arrays with every 2X2 subblock sum nondecreasing horizontally, vertically and antidiagonally ne-to-sw.
Terms
- a(0) =11100a(1) =103572a(2) =1027387a(3) =10639450a(4) =105139503a(5) =943840336a(6) =8129400162a(7) =61350595327a(8) =450711542396
External references
- oeis: A253378