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A220200 Number of nX4 arrays of the minimum value of corresponding elements and their horizontal, vertical or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 nX4 array 1
20, 89, 956, 6855, 44886, 303148, 2089805, 14021160, 88828793, 530514956, 3025654183, 16666381611, 89072121670, 462114159737, 2327673032529, 11394626760089, 54291971399557, 252137513999724, 1142599192201196 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A220204

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A234258 A213839 A264302 * A242656 A264851 A225882

Adjacent sequences:  A220197 A220198 A220199 * A220201 A220202 A220203

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 07 2012

STATUS

approved

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Last modified September 23 11:53 EDT 2020. Contains 337310 sequences. (Running on oeis4.)