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A281603 Number of nX6 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. 1
82, 1708, 49572, 1626073, 52899445, 1732267694, 56764280423, 1860912910152, 61012156448915, 2000405755119383, 65587722113126449, 2150442541118935258, 70507185356580640501, 2311739967430549263763, 75795706200446791975455 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A281605.
LINKS
EXAMPLE
Some solutions for n=3
..0..1..0..2..1..0. .0..1..2..1..0..1. .0..1..0..1..2..0. .0..1..1..0..1..1
..0..2..1..0..1..0. .0..1..0..1..0..2. .2..2..0..1..0..2. .0..2..2..0..2..0
..2..0..1..2..1..2. .0..1..2..1..2..1. .1..1..0..1..0..1. .0..1..0..1..2..1
CROSSREFS
Cf. A281605.
Sequence in context: A085439 A282155 A280857 * A234253 A031606 A232904
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 25 2017
STATUS
approved

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Last modified June 20 08:07 EDT 2024. Contains 373512 sequences. (Running on oeis4.)