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A241075 Number of nX4 0..2 arrays with no element equal to exactly one horizontal or vertical neighbor, with new values 0..2 introduced in row major order 1
4, 39, 386, 4191, 47974, 572023, 6996566, 86779948, 1085281623, 13635536887, 171768785341, 2167009960686, 27361588744430, 345643091260812, 4367483662096514, 55195179067472373, 697603829676805964 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A241078

LINKS

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

R. H. Hardin, Empirical recurrence of order 96

FORMULA

Empirical recurrence of order 96 (see link above)

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A198853 A093851 A224755 * A123618 A199757 A046449

Adjacent sequences:  A241072 A241073 A241074 * A241076 A241077 A241078

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 15 2014

STATUS

approved

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Last modified June 28 07:25 EDT 2022. Contains 354903 sequences. (Running on oeis4.)