Number of (n+1) X (5+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically.
A258551
Number of (n+1) X (5+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) =480a(1) =506a(2) =1403a(3) =2509a(4) =5070a(5) =8339a(6) =12940a(7) =18630a(8) =26240a(9) =35386a(10) =46687a(11) =59945a(12) =76039a(13) =94633a(14) =116394a(15) =141172a(16) =169894a(17) =202272a(18) =239021a(19) =280039a(20) =326301a(21) =377567a(22) =434600a(23) =497346a(24) =566828a(25) =642854a(26) =726235a(27) =816965a(28) =916115a(29) =1023541
External references
- oeis: A258551