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A197671 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,0,1 for x=0,1,2,3,4 1
25, 1963, 74812, 3675345, 178113620, 8613257822, 417293944115, 20252638815131, 981414876628367, 47569549221404522, 2306162325188337684, 111794015697526614448, 5419263655984491978357, 262704965350074163519109 (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 0's, every 4 is next to 4 1's
Column 7 of A197672
LINKS
EXAMPLE
Some solutions containing all values 0 to 4 for n=4
..0..3..0..2..1..0..1....0..0..2..1..1..1..1....0..3..0..2..1..0..0
..0..0..0..1..4..1..1....1..1..1..0..0..0..0....3..0..0..1..4..1..1
..0..3..0..2..1..1..0....1..1..4..1..3..0..3....0..3..0..1..1..1..2
..1..1..0..0..0..2..1....0..0..1..1..0..0..0....1..2..1..1..0..0..0
CROSSREFS
Sequence in context: A177837 A056047 A281436 * A051112 A061843 A173948
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 17 2011
STATUS
approved

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Last modified April 21 07:37 EDT 2024. Contains 371850 sequences. (Running on oeis4.)