Number of nX4 0..1 arrays with every element equal to 1, 2, 3 or 4 king-move adjacent elements, with upper left element zero.
A297919
Number of nX4 0..1 arrays with every element equal to 1, 2, 3 or 4 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =2a(1) =61a(2) =588a(3) =4771a(4) =41762a(5) =366976a(6) =3211086a(7) =28124318a(8) =246367034a(9) =2157960391a(10) =18902287938a(11) =165573001080
External references
- oeis: A297919