T(n,k)=Number of nXk 0..4 arrays with every row and column running average nondecreasing rightwards and downwards.

A200858

T(n,k)=Number of nXk 0..4 arrays with every row and column running average nondecreasing rightwards and downwards.

Terms

    a(0) =5a(1) =15a(2) =15a(3) =42a(4) =105a(5) =42a(6) =113a(7) =647a(8) =647a(9) =113a(10) =297a(11) =3728a(12) =8535a(13) =3728a(14) =297a(15) =767a(16) =20656a(17) =103528a(18) =103528a(19) =20656a(20) =767a(21) =1957a(22) =111222a(23) =1194898a(24) =2604826a(25) =1194898a(26) =111222a(27) =1957a(28) =4947a(29) =586908

External references