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A238724 Number of nX6 0..2 arrays with no element equal to the sum modulo 3 of elements to its left or elements above it 1
8, 64, 704, 4636, 48538, 296384, 3022230, 17949864, 180550234, 1061806368, 10600024286, 62140749704, 617608768008, 3618173053808, 35862152511062, 210135126555696, 2079126382654402, 12188142518006216, 120451983593221798 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A238726

LINKS

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

R. H. Hardin, Empirical recurrence of order 90

FORMULA

Empirical recurrence of order 90 (see link above)

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Sequence in context: A213336 A047900 A204212 * A318640 A088038 A061435

Adjacent sequences:  A238721 A238722 A238723 * A238725 A238726 A238727

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 03 2014

STATUS

approved

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Last modified July 30 18:40 EDT 2021. Contains 346359 sequences. (Running on oeis4.)