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A199148 Number of nX7 0..3 arrays with values 0..3 introduced in row major order and each element equal to one or two horizontal and vertical neighbors 0
11, 16866, 14511531, 15958823113, 16158623337745, 16925667317073175 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A199149
LINKS
EXAMPLE
Some solutions for n=3
..0..0..1..2..2..0..1....0..0..0..1..2..0..0....0..0..1..0..2..3..0
..0..1..1..3..0..0..1....0..1..0..1..2..2..2....0..1..1..0..2..3..0
..0..0..3..3..2..2..1....0..1..0..1..1..3..3....0..0..0..0..1..1..0
CROSSREFS
Sequence in context: A145526 A230220 A068647 * A248732 A252862 A232066
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 03 2011
STATUS
approved

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Last modified May 22 15:18 EDT 2024. Contains 372758 sequences. (Running on oeis4.)