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A224350 Number of nX5 0..2 arrays with diagonals and antidiagonals unimodal and rows nondecreasing 1
21, 441, 5840, 57387, 495985, 4231138, 37433596, 342170839, 3178789749, 29672959682, 277160393375, 2589242347971, 24204240827093, 226449704878547, 2120085885822119, 19857888410207651, 186050078426398273 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A224353

LINKS

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

R. H. Hardin, Empirical recurrence of order 56

FORMULA

Empirical recurrence of order 56 (see link above)

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A206886 A188770 A223922 * A224192 A207184 A189060

Adjacent sequences:  A224347 A224348 A224349 * A224351 A224352 A224353

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 04 2013

STATUS

approved

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Last modified January 27 17:36 EST 2022. Contains 350611 sequences. (Running on oeis4.)