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A183490 Number of nX7 0..3 arrays with every element equal to either the sum mod 4 of its vertical neighbors or the sum mod 4 of its horizontal neighbors 0
73, 38272, 397689, 22721738, 3384231070, 91098582570 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A183492

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for 3X7

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

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

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

CROSSREFS

Sequence in context: A274591 A232293 A232366 * A232307 A232457 A262662

Adjacent sequences:  A183487 A183488 A183489 * A183491 A183492 A183493

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 05 2011

STATUS

approved

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Last modified January 18 21:06 EST 2021. Contains 340262 sequences. (Running on oeis4.)