A221735 Number of nX6 arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, without move-in move-out left turns

144, 105408, 84394752, 67528875354, 53939764009028, 43051262023996034, 34355417381243700937, 27415881282067220116760, 21877997519736271995465835, 17458732342568980298729228729, 13932139393042843547700869794744

Offset

1,1

Comments

Column 6 of A221736

Links

R. H. Hardin, Table of n, a(n) for n = 1..13

Example

Some solutions for n=3
..0..1..1..4..0..1....0..1..1..1..1..0....0..1..1..2..3..0....0..1..2..2..1..0
..0..3..1..0..2..2....0..3..1..1..3..0....0..3..0..1..1..1....0..3..0..2..1..1
..0..0..2..0..1..0....0..0..4..0..0..2....0..0..2..0..3..0....0..0..3..0..2..0

Crossrefs

Sequence in context: A288909 A187169 A187464 * A272462 A217339 A231827

Adjacent sequences: A221732 A221733 A221734 * A221736 A221737 A221738

Keyword

nonn

Author

R. H. Hardin Jan 22 2013

Status

approved