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A267202 Number of 4Xn arrays containing n copies of 0..4-1 with every element equal to or 1 greater than any north, southwest or northwest neighbors modulo 4 and the upper left element equal to 0. 1
1, 0, 0, 1, 5, 23, 79, 178, 336, 835, 3128, 14040, 59621, 222502, 738006, 2300988, 7269138, 24626806, 89676159, 336858214, 1251319303, 4507801679, 15792191315, 54688767852, 190846159644, 679049839287, 2461345925310, 8998778045264 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

Row 4 of A267197.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..39

EXAMPLE

Some solutions for n=8

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

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

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

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

CROSSREFS

Cf. A267197.

Sequence in context: A111584 A225266 A293426 * A211809 A211922 A139209

Adjacent sequences:  A267199 A267200 A267201 * A267203 A267204 A267205

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 11 2016

STATUS

approved

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Last modified June 22 17:18 EDT 2021. Contains 345388 sequences. (Running on oeis4.)