T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal median minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

A253961

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal median minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

Terms

    a(0) =512a(1) =2992a(2) =2992a(3) =16544a(4) =20868a(5) =16544a(6) =82064a(7) =142800a(8) =148332a(9) =82064a(10) =423232a(11) =1022752a(12) =1501724a(13) =1048679a(14) =423232a(15) =2154496a(16) =7533252a(17) =15946360a(18) =16186768a(19) =7777096a(20) =2154496a(21) =11244672a(22) =55225242a(23) =167174472a(24) =240903042a(25) =168988280

External references