A197068 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,1,3,0,2 for x=0,1,2,3,4

13, 890, 55882, 3302634, 211057159, 12999535244, 814152081238, 50916124396857, 3169573665892646, 197847302932994974, 12351729551918734858, 770687990728503616778, 48091585181900385239782, 3001138140644565155352997

Offset

1,1

Comments

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

Column 7 of A197069

Links

R. H. Hardin, Table of n, a(n) for n = 1..197

Example

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

Crossrefs

Sequence in context: A201255 A196695 A196728 * A337575 A274544 A267915

Adjacent sequences: A197065 A197066 A197067 * A197069 A197070 A197071

Keyword

nonn

Author

R. H. Hardin Oct 09 2011

Status

approved