Number of nX7 array permutations with each element not moving, or moving one space E, S or NW.
A189608
Number of nX7 array permutations with each element not moving, or moving one space E, S or NW.
Terms
- a(0) =1a(1) =129a(2) =3248a(3) =108785a(4) =3414588a(5) =107793872a(6) =3394457868a(7) =106717857552
External references
- oeis: A189608