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A201830 Number of nX2 0..3 arrays with every diagonal, row and column running average nondecreasing rightwards and downwards and diagonally 1
10, 50, 212, 823, 3030, 10777, 37530, 128742, 437110, 1472736, 4933374, 16449879, 54649472, 181008926, 598052300, 1971884632, 6490418396, 21331768570, 70022479666, 229604183052, 752170525867, 2462061236121, 8053252606139 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A201836

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..36

EXAMPLE

Some solutions for n=7

..0..1....0..1....0..1....0..0....0..0....0..0....0..0....1..1....0..0....0..0

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

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

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

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

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

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

CROSSREFS

Sequence in context: A237655 A261648 A086462 * A192019 A201210 A003207

Adjacent sequences:  A201827 A201828 A201829 * A201831 A201832 A201833

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 05 2011

STATUS

approved

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Last modified April 8 08:04 EDT 2020. Contains 333313 sequences. (Running on oeis4.)