Number of (5+1) X (n+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically.
A258558
Number of (5+1) X (n+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) =1329a(2) =2384a(3) =3754a(4) =5070a(5) =6662a(6) =8612a(7) =10720a(8) =12831a(9) =15045a(10) =17532a(11) =20200a(12) =22894a(13) =25714a(14) =28830a(15) =32150a(16) =35519a(17) =39037a(18) =42874a(19) =46938a(20) =51074a(21) =55382a(22) =60032a(23) =64932a(24) =69927a(25) =75117a(26) =80672a(27) =86500a(28) =92446a(29) =98610
External references
- oeis: A258558