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 3,1,2,0,4 for x=0,1,2,3,4.
A196912
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 3,1,2,0,4 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =3a(4) =6a(5) =3a(6) =4a(7) =13a(8) =13a(9) =4a(10) =6a(11) =34a(12) =50a(13) =34a(14) =6a(15) =9a(16) =81a(17) =193a(18) =193a(19) =81a(20) =9a(21) =13a(22) =199a(23) =731a(24) =1193a(25) =731a(26) =199a(27) =13a(28) =19a(29) =487
External references
- oeis: A196912