Number of nX2 0..1 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order.

A267638

Number of nX2 0..1 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order.

Terms

    a(0) =2a(1) =8a(2) =18a(3) =50a(4) =98a(5) =242a(6) =450a(7) =1058a(8) =1922a(9) =4418a(10) =7938a(11) =18050a(12) =32258a(13) =72962a(14) =130050a(15) =293378a(16) =522242a(17) =1176578a(18) =2093058a(19) =4712450a(20) =8380418a(21) =18862082a(22) =33538050a(23) =75472898a(24) =134184962a(25) =301940738a(26) =536805378a(27) =1207861250a(28) =2147352578a(29) =4831641602

External references