Number of n X 1 0..1 arrays with the number of 1's king-move adjacent to some 0 two less than the number of 0's adjacent to some 1.
A286209
Number of n X 1 0..1 arrays with the number of 1's king-move adjacent to some 0 two less than the number of 0's adjacent to some 1.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =1a(7) =3a(8) =10a(9) =24a(10) =60a(11) =134a(12) =304a(13) =656a(14) =1420a(15) =2996a(16) =6312a(17) =13112a(18) =27167a(19) =55825a(20) =114412a(21) =233282a(22) =474563a(23) =962159a(24) =1947098a(25) =3931288a(26) =7925708a(27) =15952866a(28) =32072580a(29) =64404708
External references
- oeis: A286209