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A251116 Number of (n+1)X(3+1) 0..3 arrays with nondecreasing maximum of every two consecutive values in every row and column 1
22500, 1494029, 86208566, 3816838692, 152303295344, 5387348466660, 177938935415798, 5502772243799727, 162662498113307643, 4619253532805480216, 127251482033929987476, 3414828003845101346775, 89735028379445977912644 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A251120

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A230924 A250441 A204305 * A235415 A235260 A236085

Adjacent sequences:  A251113 A251114 A251115 * A251117 A251118 A251119

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 30 2014

STATUS

approved

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Last modified January 28 23:12 EST 2022. Contains 350670 sequences. (Running on oeis4.)