Number of n X 2 0..2 arrays with every repeated value in every row and column greater than the previous repeated value.
A267961
Number of n X 2 0..2 arrays with every repeated value in every row and column greater than the previous repeated value.
Terms
- a(0) =9a(1) =81a(2) =576a(3) =3969a(4) =25281a(5) =155236a(6) =915849a(7) =5253264a(8) =29365561a(9) =160731684a(10) =863478225a(11) =4564353600a(12) =23782266225a(13) =122339052900a(14) =622112365081
External references
- oeis: A267961