A197407 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,0,1,1,1 for x=0,1,2,3,4

16, 664, 7232, 199384, 4499426, 93153650, 2065093081, 45796265386, 1003308210971, 22026879283832, 484764553481336, 10667288376795442, 234488008953014630, 5155498381464737047, 113400638560649259216

Offset

1,1

Comments

Every 0 is next to 0 3's, every 1 is next to 1 0's, every 2 is next to 2 1's, every 3 is next to 3 1's, every 4 is next to 4 1's

Column 6 of A197409

Links

R. H. Hardin, Table of n, a(n) for n = 1..164

Example

Some solutions containing all values 0 to 4 for n=4
..1..0..2..1..1..2....0..0..1..3..1..0....0..1..1..0..0..0....1..2..0..1..3..1
..2..1..1..0..0..1....1..2..2..1..4..1....1..4..1..2..1..1....0..1..1..4..1..0
..2..1..4..1..1..1....1..1..0..0..1..1....2..1..0..2..1..3....0..1..1..1..4..1
..1..0..1..3..1..0....0..2..1..1..1..0....0..1..1..1..0..1....1..2..0..0..1..2

Crossrefs

Sequence in context: A220298 A222916 A346181 * A197429 A231936 A326210

Adjacent sequences: A197404 A197405 A197406 * A197408 A197409 A197410

Keyword

nonn

Author

R. H. Hardin Oct 14 2011

Status

approved