T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 0,3,1,1,1 for x=0,1,2,3,4.
A197623
T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 0,3,1,1,1 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =8a(8) =8a(9) =0a(10) =0a(11) =0a(12) =0a(13) =0a(14) =0a(15) =0a(16) =8a(17) =27a(18) =27a(19) =8a(20) =0a(21) =0a(22) =32a(23) =27a(24) =98a(25) =27a(26) =32a(27) =0a(28) =0a(29) =16
External references
- oeis: A197623