T(n,k) is the number of n X k 0..6 arrays with every row and column running average nondecreasing rightwards and downwards.

A200974

T(n,k) is the number of n X k 0..6 arrays with every row and column running average nondecreasing rightwards and downwards.

Terms

    a(0) =7a(1) =28a(2) =28a(3) =106a(4) =336a(5) =106a(6) =388a(7) =3636a(8) =3636a(9) =388a(10) =1387a(11) =37254a(12) =110854a(13) =37254a(14) =1387a(15) =4874a(16) =368218a(17) =3167295a(18) =3167295a(19) =368218a(20) =4874a(21) =16919a(22) =3543465a(23) =86468392a(24) =250149820a(25) =86468392a(26) =3543465a(27) =16919a(28) =58198a(29) =33420304

External references