T(n,k)=Number of nXk 0..2 arrays with no element equal to exactly two horizontal and vertical neighbors, with new values 0..2 introduced in row major order.

A241130

T(n,k)=Number of nXk 0..2 arrays with no element equal to exactly two horizontal and vertical neighbors, with new values 0..2 introduced in row major order.

Terms

    a(0) =1a(1) =2a(2) =2a(3) =4a(4) =9a(5) =4a(6) =11a(7) =54a(8) =54a(9) =11a(10) =30a(11) =325a(12) =723a(13) =325a(14) =30a(15) =82a(16) =1965a(17) =9773a(18) =9773a(19) =1965a(20) =82a(21) =224a(22) =11876a(23) =132369a(24) =295584a(25) =132369a(26) =11876a(27) =224a(28) =612a(29) =71793

External references