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A196684 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,2,3 for x=0,1,2,3,4 1
25, 1629, 22461, 796557, 25142624, 741925729, 23029545105, 718199634805, 22138818455076, 682005890331480, 21125269566890884, 654095412346594187, 20229325302713363751, 625878086264793074895, 19368465617464223064077 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

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

Column 7 of A196685

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..32

EXAMPLE

Some solutions for n=4

..0..0..2..1..1..2..0....0..1..1..0..1..2..0....0..1..1..0..0..1..1

..0..2..1..0..0..1..2....0..1..2..0..1..1..0....0..2..1..2..0..2..0

..0..1..2..2..1..1..1....0..2..0..0..1..1..1....0..0..0..1..1..1..2

..1..2..0..1..1..0..0....0..1..2..1..1..0..1....0..0..0..1..1..0..1

CROSSREFS

Sequence in context: A219091 A196299 A196217 * A125826 A263967 A290881

Adjacent sequences:  A196681 A196682 A196683 * A196685 A196686 A196687

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 05 2011

STATUS

approved

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Last modified August 19 23:59 EDT 2022. Contains 356231 sequences. (Running on oeis4.)