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A203344 Number of nX6 0..4 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors 1
1, 2329, 2566719, 1288066857, 643689050030, 360171255368417, 202012748290560363, 111992397576647615102, 62386916161252471722500, 34899624501636294504733677, 19521405552266756242548467057 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A203346

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..15

EXAMPLE

Some solutions for n=5

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

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

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

..0..3..1..4..4..4....4..4..1..3..4..4....4..4..1..4..3..0....4..4..4..3..0..3

..0..3..3..4..4..4....4..4..1..3..4..4....4..4..4..4..3..0....4..4..4..3..3..3

CROSSREFS

Sequence in context: A186058 A309672 A238175 * A178552 A166581 A237387

Adjacent sequences:  A203341 A203342 A203343 * A203345 A203346 A203347

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 31 2011

STATUS

approved

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Last modified April 23 05:34 EDT 2021. Contains 343199 sequences. (Running on oeis4.)