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A233223 Number of 7Xn 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally or antidiagonally, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order 1
6896, 152986472, 4187991850726, 114934898294104873, 3154729081272072714436, 86591682356567376541898371, 2376789549887845473135654118063, 65238704957423784569815168199528386 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A233217

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=2

..0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0

..0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0

..0..1....0..1....0..0....0..1....0..1....0..1....0..0....0..0....0..0....0..0

..0..4....0..4....1..1....0..2....1..0....1..0....1..0....1..2....1..1....1..5

..4..2....5..2....0..4....1..2....2..2....4..2....0..2....5..2....1..5....4..2

..2..5....5..2....5..5....1..5....5..4....1..0....2..4....4..5....5..1....4..4

..1..0....5..5....2..0....5..5....2..5....3..0....3..4....3..1....0..4....0..2

CROSSREFS

Sequence in context: A233180 A233262 A233245 * A106768 A156419 A268908

Adjacent sequences:  A233220 A233221 A233222 * A233224 A233225 A233226

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 06 2013

STATUS

approved

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Last modified October 17 07:39 EDT 2021. Contains 348048 sequences. (Running on oeis4.)