Number of n X 4 array permutations with each element moving zero or one space horizontally or diagonally.
A189444
Number of n X 4 array permutations with each element moving zero or one space horizontally or diagonally.
Terms
- a(0) =5a(1) =61a(2) =666a(3) =7300a(4) =80282a(5) =883049a(6) =9712873a(7) =106834338a(8) =1175098084a(9) =12925203122a(10) =142167601085
External references
- oeis: A189444