T(n,k)=Agreement numbers: number of nXk arrays of the count of horizontal and vertical neighbors equal to the corresponding element in a random 0..3 nXk array.

A220786

T(n,k)=Agreement numbers: number of nXk arrays of the count of horizontal and vertical neighbors equal to the corresponding element in a random 0..3 nXk array.

Terms

    a(0) =1a(1) =2a(2) =2a(3) =4a(4) =11a(5) =4a(6) =8a(7) =66a(8) =66a(9) =8a(10) =16a(11) =388a(12) =1197a(13) =388a(14) =16a(15) =32a(16) =2292a(17) =21551a(18) =21551a(19) =2292a(20) =32a(21) =64a(22) =13524a(23) =388159a(24) =1180735a(25) =388159a(26) =13524a(27) =64a(28) =128a(29) =79820

External references