Number of (n+1) X (2+1) arrays of permutations of 0..n*3+2 with each element having directed index change 0,0 0,1 1,0 -2,-1 or -1,-2.
A264167
Number of (n+1) X (2+1) arrays of permutations of 0..n*3+2 with each element having directed index change 0,0 0,1 1,0 -2,-1 or -1,-2.
Terms
- a(0) =4a(1) =25a(2) =98a(3) =418a(4) =1862a(5) =8007a(6) =34539a(7) =149808a(8) =648436a(9) =2805250a(10) =12142877a(11) =52558637a(12) =227471330a(13) =984523558a(14) =4261166714a(15) =18442796291a(16) =79822557139a(17) =345481774068
External references
- oeis: A264167