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A230752 Number of (n+3)X(3+3) 0..2 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero 1
2700, 178608, 13305708, 820317888, 51048476748, 3154520054700, 194576103540300, 11996844809605932, 739805051154249408, 45610762080137185200, 2812209212644935163212, 173386992056092099438572 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A230757

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

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

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

CROSSREFS

Sequence in context: A254798 A253814 A054561 * A246888 A153513 A333130

Adjacent sequences:  A230749 A230750 A230751 * A230753 A230754 A230755

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 29 2013

STATUS

approved

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Last modified September 18 04:22 EDT 2021. Contains 347508 sequences. (Running on oeis4.)