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A204226 Number of (n+1)X5 0..2 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards 1
11100, 312001, 8183170, 129062037, 2019310610, 21958547501, 239090847020, 1998393334223, 16732354210738, 114864924928762, 789227515822757, 4651328406696920, 27416959362534398, 143142975020535966 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A204230

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A300562 A253378 A253371 * A235440 A235405 A158619

Adjacent sequences:  A204223 A204224 A204225 * A204227 A204228 A204229

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 13 2012

STATUS

approved

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Last modified September 15 18:47 EDT 2019. Contains 327083 sequences. (Running on oeis4.)