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A184405 1/6 the number of (n+2)X4 0..2 arrays with each 3X3 subblock containing two of one value, three of another, and four of the last 1
16140, 326100, 6361037, 127484430, 2555137939, 51389641795, 1035065757204, 20870295045966, 421098204454741, 8500324048315260, 171638818042385741, 3466424314411616868, 70017331814282370642, 1414381291357998662563 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A184407

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

EXAMPLE

Some solutions with a(1,1)=0 for 6X4

..0..0..0..0....0..0..0..0....0..0..0..2....0..0..0..2....0..0..0..2

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

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

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

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

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

CROSSREFS

Sequence in context: A335305 A267118 A145717 * A134120 A109566 A235244

Adjacent sequences:  A184402 A184403 A184404 * A184406 A184407 A184408

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 12 2011

STATUS

approved

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Last modified June 14 15:19 EDT 2021. Contains 345025 sequences. (Running on oeis4.)