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A198537 Number of 2nX6 0..4 arrays with values 0..4 introduced in row major order and each element equal to an even number of horizontal and vertical neighbors. 0
67442, 163506788110, 397739142470871040, 967523967174230258261646, 2353559236762243709633958950262 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A198538.
LINKS
EXAMPLE
Some solutions for n=2
..0..0..0..1..0..2....0..0..0..1..2..1....0..0..0..1..2..3....0..0..0..1..2..0
..0..1..0..3..4..1....0..1..0..2..3..0....0..1..0..2..4..2....0..1..0..3..4..3
..0..0..0..1..0..4....0..0..0..3..1..4....0..0..0..1..2..0....0..0..0..1..2..1
..1..2..1..4..1..2....1..2..1..2..4..2....1..2..1..3..4..1....1..2..1..3..0..2
CROSSREFS
Sequence in context: A251849 A359334 A226529 * A249208 A234120 A101697
KEYWORD
nonn,more
AUTHOR
R. H. Hardin, Oct 26 2011
STATUS
approved

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Last modified May 30 17:43 EDT 2024. Contains 372971 sequences. (Running on oeis4.)