Number of 1Xn 0..n 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.
A268010
Number of 1Xn 0..n 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) =1a(1) =2a(2) =4a(3) =12a(4) =40a(5) =154a(6) =656a(7) =3074a(8) =15616a(9) =85360a(10) =498464a(11) =3092450a(12) =20286360a(13) =140153382a(14) =1016262080a(15) =7710988372a(16) =61062381784a(17) =503482376930
External references
- oeis: A268010