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A250711 Number of (4+1)X(n+1) 0..3 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction 1
10050, 160486, 2003383, 19962956, 171212264, 1307242006, 9230232528, 61126170276, 387004301120, 2358139264124, 13974693194584, 80831674128541, 459221501159086, 2567770538949042, 14188595479850137, 77572100534194499 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A250707

LINKS

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

R. H. Hardin, Empirical recurrence of order 93

FORMULA

Empirical recurrence of order 93 (see link above)

EXAMPLE

Some solutions for n=2

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

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

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

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

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

CROSSREFS

Sequence in context: A346026 A097648 A188663 * A223431 A203089 A187113

Adjacent sequences:  A250708 A250709 A250710 * A250712 A250713 A250714

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 26 2014

STATUS

approved

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Last modified January 26 18:26 EST 2022. Contains 350599 sequences. (Running on oeis4.)