Number of nX3 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.
A267639
Number of nX3 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) =3a(1) =18a(2) =51a(3) =189a(4) =429a(5) =1353a(6) =2829a(7) =8427a(8) =16899a(9) =49443a(10) =96657a(11) =282717a(12) =542913a(13) =1601355a(14) =3032535a(15) =9058395a(16) =16953333a(17) =51380925a(18) =95168013a(19) =292791555a(20) =537249507a(21) =1677388467a(22) =3051796161a(23) =9662000493a(24) =17443801617a(25) =55944191787a(26) =100303228599
External references
- oeis: A267639