The On-Line Encyclopedia of Integer Sequences (OEIS)

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A201191

Number of nX4 0..2 arrays with every row and column running average nondecreasing rightwards and downwards but some diagonal running average having a decrease
(history; published version)

#5 by Russ Cox at Sat Mar 31 12:36:43 EDT 2012

AUTHOR

_R. H. Hardin (rhhardin(AT)att.net) _ Nov 28 2011

Discussion

Sat Mar 31

12:36

OEIS Server: https://oeis.org/edit/global/875

#4 by Ron Hardin at Mon Nov 28 04:20:36 EST 2011

STATUS

editing

approved

#3 by Ron Hardin at Mon Nov 28 04:20:32 EST 2011

LINKS

R. H. Hardin, <a href="/A201191/b201191.txt">Table of n, a(n) for n = 1..48</a>

#2 by Ron Hardin at Mon Nov 28 04:20:13 EST 2011

NAME

allocated for Ron HardinNumber of nX4 0..2 arrays with every row and column running average nondecreasing rightwards and downwards but some diagonal running average having a decrease

DATA

0, 6, 45, 276, 1742, 10723, 62507, 341239, 1756705, 8615033, 40624254, 185606670, 826641108, 3606104752, 15466501406, 65414240653, 273469830394, 1132219841873, 4649478654934, 18961523046357, 76874485386538, 310096854888262

OFFSET

1,2

COMMENTS

Column 4 of A201195

EXAMPLE

Some solutions for n=7

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

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

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

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

..2..2..2..2....1..1..2..2....1..1..2..2....1..2..2..2....2..2..2..2

..1..2..2..2....1..1..2..2....1..1..1..1....1..1..1..2....1..1..2..2

..1..1..1..2....2..2..2..2....1..2..2..2....1..2..2..2....2..2..2..2

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Nov 28 2011

STATUS

approved

editing

#1 by Ron Hardin at Mon Nov 28 04:14:59 EST 2011

NAME

allocated for Ron Hardin

KEYWORD

allocated

STATUS

approved