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 0,0,1,1,1 for x=0,1,2,3,4.
A197250
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 0,0,1,1,1 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =1a(4) =4a(5) =1a(6) =1a(7) =8a(8) =8a(9) =1a(10) =3a(11) =16a(12) =3a(13) =16a(14) =3a(15) =3a(16) =40a(17) =53a(18) =53a(19) =40a(20) =3a(21) =2a(22) =80a(23) =110a(24) =275a(25) =110a(26) =80a(27) =2a(28) =4a(29) =192
External references
- oeis: A197250