T(n,k)=Number of nXk 0..3 arrays with no more than floor(nXk/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..3 order.

A222479

T(n,k)=Number of nXk 0..3 arrays with no more than floor(nXk/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..3 order.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =4a(7) =1a(8) =1a(9) =4a(10) =5a(11) =10a(12) =5a(13) =10a(14) =5a(15) =14a(16) =11a(17) =42a(18) =42a(19) =11a(20) =14a(21) =17a(22) =126a(23) =45a(24) =235a(25) =45a(26) =126a(27) =17a(28) =75a(29) =139

External references