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A250861 Number of (n+2)X(1+2) 0..3 arrays with nondecreasing sum of every three consecutive values in every row and column 2
262144, 4096000, 64000000, 1000000000, 8000000000, 64000000000, 512000000000, 2744000000000, 14706125000000, 78815638671875, 322828856000000, 1322306994176000, 5416169448144896, 18279571887489024, 61693555120275456 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 1 of A250868

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..94

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Sequence in context: A224803 A223336 A250868 * A186629 A186626 A016998

Adjacent sequences:  A250858 A250859 A250860 * A250862 A250863 A250864

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 28 2014

STATUS

approved

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Last modified February 27 22:50 EST 2020. Contains 332318 sequences. (Running on oeis4.)