Number of n X 3 array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally.
A189644
Number of n X 3 array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally.
Terms
- a(0) =3a(1) =33a(2) =263a(3) =2161a(4) =17655a(5) =144353a(6) =1180167a(7) =9648721a(8) =78885143a(9) =644942273a(10) =5272862503a(11) =43109407281a(12) =352450114615
External references
- oeis: A189644