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A203027 Number of nX3 0..3 arrays with row sums equal and column sums unequal to adjacent columns 1
36, 396, 4740, 50716, 578696, 6829968, 77256180, 900837948, 10744263240, 124084485456, 1463920739636, 17570679180208, 205416961911028, 2441375153064180, 29416331612748560, 346614764617651324 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A203031

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..67

EXAMPLE

Some.solutions.for.n=5

..0..1..0....0..2..0....3..3..1....2..2..0....2..1..0....3..2..3....1..1..1

..0..0..1....0..1..1....2..3..2....0..1..3....2..1..0....2..3..3....0..1..2

..0..0..1....0..2..0....1..3..3....3..0..1....1..0..2....2..3..3....3..0..0

..0..1..0....1..0..1....1..3..3....1..1..2....2..0..1....2..3..3....2..0..1

..0..0..1....2..0..0....3..1..3....3..1..0....2..0..1....2..3..3....0..1..2

CROSSREFS

Sequence in context: A095682 A083811 A086575 * A164583 A273229 A264361

Adjacent sequences:  A203024 A203025 A203026 * A203028 A203029 A203030

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 27 2011

STATUS

approved

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Last modified July 25 06:42 EDT 2017. Contains 289779 sequences.