Number of (n+1) X (4+1) 0..1 arrays with every 2 X 2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically.
A253393
Number of (n+1) X (4+1) 0..1 arrays with every 2 X 2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically.
Terms
- a(0) =180a(1) =197a(2) =246a(3) =346a(4) =465a(5) =632a(6) =823a(7) =1071a(8) =1351a(9) =1695a(10) =2079a(11) =2535a(12) =3039a(13) =3623a(14) =4263a(15) =4991a(16) =5783a(17) =6671a(18) =7631a(19) =8695a(20) =9839a(21) =11095a(22) =12439a(23) =13903a(24) =15463a(25) =17151a(26) =18943a(27) =20871a(28) =22911a(29) =25095
External references
- oeis: A253393