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A201148 Number of n X n 0..2 arrays with every diagonal, row and column running average nondecreasing rightwards and downwards and diagonally 0
3, 20, 235, 4572, 153796, 9005581, 938925282, 177169920997, 61277532455559 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A201155

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A240957 A335871 A195135 * A248653 A218374 A219541

Adjacent sequences: A201145 A201146 A201147 * A201149 A201150 A201151

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 27 2011

STATUS

approved

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Last modified December 5 21:40 EST 2022. Contains 358594 sequences. (Running on oeis4.)