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A224379 Number of 7Xn 0..2 arrays with rows unimodal and antidiagonals nondecreasing 1
2187, 419904, 9588028, 86251004, 495660330, 2231009824, 8684742989, 30944246553, 104711652679, 344919346826, 1122234055919, 3627085766299, 11631834618628, 36830849015498, 114465864361342, 347386072561498 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A224374

LINKS

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

R. H. Hardin, Empirical polynomial of degree 28

FORMULA

Empirical polynomial of degree 28 (see link above)

EXAMPLE

Some solutions for n=3

..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0

..0..0..1....0..0..0....0..0..1....0..0..1....0..0..1....1..0..0....0..0..0

..0..1..1....0..1..0....0..1..0....0..1..0....0..1..0....0..0..0....0..0..0

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

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

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

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

CROSSREFS

Sequence in context: A016771 A059979 A224315 * A016843 A016891 A016951

Adjacent sequences:  A224376 A224377 A224378 * A224380 A224381 A224382

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 05 2013

STATUS

approved

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Last modified April 14 18:19 EDT 2021. Contains 342951 sequences. (Running on oeis4.)