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 2,3,0,1,4 for x=0,1,2,3,4.
A196493
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 2,3,0,1,4 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =3a(8) =3a(9) =1a(10) =1a(11) =5a(12) =9a(13) =5a(14) =1a(15) =1a(16) =9a(17) =23a(18) =23a(19) =9a(20) =1a(21) =1a(22) =17a(23) =69a(24) =99a(25) =69a(26) =17a(27) =1a(28) =1a(29) =31
External references
- oeis: A196493