T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal median nondecreasing horizontally and vertically.
A254457
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal median nondecreasing horizontally and vertically.
Terms
- a(0) =512a(1) =3036a(2) =3036a(3) =16240a(4) =26380a(5) =16240a(6) =76832a(7) =196684a(8) =196684a(9) =76832a(10) =348032a(11) =1279568a(12) =2085712a(13) =1279568a(14) =348032a(15) =1511152a(16) =8004340a(17) =19716320a(18) =19716320a(19) =8004340a(20) =1511152a(21) =6440848a(22) =48345120a(23) =180449544a(24) =275772848a(25) =180449544a(26) =48345120
External references
- oeis: A254457