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A185822 1/5 the number of nX6 0..4 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors 0
29, 49248, 35446376, 32995092992, 28043363244452 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A185825
LINKS
EXAMPLE
Some solutions for 4X6 with a(1,1)=0
..0..0..1..1..4..4....0..0..2..2..0..0....0..0..4..4..2..2....0..0..0..3..2..3
..0..1..0..2..2..4....0..1..0..0..0..1....0..1..0..4..1..2....0..1..0..3..2..3
..0..1..0..2..0..2....0..1..0..2..1..1....0..1..0..2..1..2....0..1..0..2..4..4
..0..0..0..2..0..2....0..0..0..2..4..4....0..0..0..2..3..3....0..0..0..2..4..4
CROSSREFS
Sequence in context: A296176 A159437 A343451 * A321666 A139775 A303734
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 05 2011
STATUS
approved

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Last modified June 18 17:37 EDT 2024. Contains 373483 sequences. (Running on oeis4.)