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A250683 Number of (7+1)X(n+1) 0..3 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction 2
1005121, 32230991, 923242475, 23739860017, 542694735983, 11161659240791, 210335029800118, 3682042848693451, 60641209583699449, 948745856029597670, 14215547255379464689, 205309451238359552540, 2873492420605039758875 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A250676

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..17

EXAMPLE

Some solutions for n=1

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A065325 A245210 A250698 * A065326 A213904 A059925

Adjacent sequences:  A250680 A250681 A250682 * A250684 A250685 A250686

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 26 2014

STATUS

approved

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Last modified October 30 03:24 EDT 2020. Contains 338076 sequences. (Running on oeis4.)