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A208862 Number of nX6 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than one of its immediate leftward or upward or left-upward diagonal neighbors 1
187, 315203, 607924387, 1179377179523, 2289701830963879, 4445765748006060562, 8632160191264007914496, 16760735467624113550972052, 32543685580973709708760951442, 63188843847651604770766546682829 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A208864

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..136

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A208351 A241333 A223060 * A208870 A208877 A208173

Adjacent sequences: A208859 A208860 A208861 * A208863 A208864 A208865

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 02 2012

STATUS

approved

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Last modified January 31 21:13 EST 2023. Contains 359981 sequences. (Running on oeis4.)