Number of (n+1) X (6+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically.
A258552
Number of (n+1) X (6+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically.
Terms
- a(0) =988a(1) =683a(2) =1917a(3) =3314a(4) =6662a(5) =10854a(6) =16942a(7) =24300a(8) =33844a(9) =45166a(10) =59274a(11) =75580a(12) =95044a(13) =117306a(14) =143422a(15) =172852a(16) =206604a(17) =244366a(18) =287242a(19) =334740a(20) =387916a(21) =446506a(22) =511662a(23) =582940a(24) =661444a(25) =746958a(26) =840682a(27) =942220a(28) =1052724a(29) =1172026
External references
- oeis: A258552