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A251029 Number of (n+1)X(n+1) 0..3 arrays with nondecreasing min(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 0
110, 6089, 422538, 32439684, 2592092409, 213854374926, 17881871080466, 1526776149775282 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A251037

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A008395 A201213 A250528 * A111600 A111784 A146495

Adjacent sequences:  A251026 A251027 A251028 * A251030 A251031 A251032

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 29 2014

STATUS

approved

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Last modified August 19 23:59 EDT 2022. Contains 356231 sequences. (Running on oeis4.)