Number of 2Xn 0..4 arrays with the absolute differences of each element with its with horizontal and antidiagonal neighbors unique.
A265930
Number of 2Xn 0..4 arrays with the absolute differences of each element with its with horizontal and antidiagonal neighbors unique.
Terms
- a(0) =25a(1) =340a(2) =1740a(3) =9016a(4) =44916a(5) =223788a(6) =1119424a(7) =5621396a(8) =28130560a(9) =140718764a(10) =704493864a(11) =3528165236a(12) =17658676752a(13) =88394841700a(14) =442557740144
External references
- oeis: A265930