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A238725 Number of nX7 0..2 arrays with no element equal to the sum modulo 3 of elements to its left or elements above it 1
16, 170, 2704, 24298, 359456, 3022230, 43248968, 354823094, 4990305568, 40601871406, 565368140984, 4590068472250, 63524027304400, 515796560253008, 7110064227756832, 57780149815277172, 794366012177843040 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A238726

LINKS

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

EXAMPLE

Some solutions for n=4

..2..1..1..2..2..1..1....1..2..2..1..2..1..1....2..1..1..2..1..2..1

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

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

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

CROSSREFS

Sequence in context: A021424 A200673 A230510 * A221789 A018209 A021174

Adjacent sequences:  A238722 A238723 A238724 * A238726 A238727 A238728

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 03 2014

STATUS

approved

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Last modified October 1 08:23 EDT 2022. Contains 357135 sequences. (Running on oeis4.)