Number of n X 2 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.

A286210

Number of n X 2 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) =4a(2) =17a(3) =62a(4) =238a(5) =912a(6) =3468a(7) =13224a(8) =50655a(9) =194672a(10) =750165a(11) =2897898a(12) =11219322a(13) =43520672a(14) =169113746a(15) =658172740a(16) =2565143148a(17) =10010037116a(18) =39107620002a(19) =152948221004a(20) =598750691827

External references