T(n,k)=Number of nXk 0..3 arrays with no more than floor(nXk/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order.
A222906
T(n,k)=Number of nXk 0..3 arrays with no more than floor(nXk/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =4a(5) =5a(6) =4a(7) =7a(8) =14a(9) =15a(10) =5a(11) =25a(12) =45a(13) =75a(14) =51a(15) =14a(16) =92a(17) =373a(18) =767a(19) =411a(20) =187a(21) =17a(22) =403a(23) =1202a(24) =7794a(25) =4909a(26) =2522a(27) =715a(28) =75a(29) =1710
External references
- oeis: A222906