T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with nondecreasing maximum of every three consecutive values in every row and column.

A250574

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with nondecreasing maximum of every three consecutive values in every row and column.

Terms

    a(0) =512a(1) =3375a(2) =3375a(3) =21952a(4) =39852a(5) =21952a(6) =140608a(7) =463006a(8) =463006a(9) =140608a(10) =884736a(11) =5281190a(12) =9583440a(13) =5281190a(14) =884736a(15) =5545233a(16) =59025322a(17) =194160522a(18) =194160522a(19) =59025322a(20) =5545233a(21) =34645976a(22) =656805747a(23) =3844025984a(24) =6967413024a(25) =3844025984

External references