Number of nX5 array permutations with each element not moving, or moving one space E, S or NW.
A189606
Number of nX5 array permutations with each element not moving, or moving one space E, S or NW.
Terms
- a(0) =1a(1) =28a(2) =256a(3) =2853a(4) =30283a(5) =321815a(6) =3414588a(7) =36212912a(8) =383990913a(9) =4071436782a(10) =43168209556a(11) =457694879893
External references
- oeis: A189606