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A205176 Number of (n+1)X4 0..3 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards 1
23244, 1373400, 73775908, 2902004018, 109885347688, 3518676186849, 109442756670711, 3115212983893648, 86726190046550479, 2304039589889181877, 60300435912522661946, 1540435957552411019321, 39002535056386537871612 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A205181

LINKS

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

EXAMPLE

Some solutions for n=4

..3..3..1..1....1..0..0..0....1..3..2..0....1..1..0..3....1..0..3..3

..1..0..1..2....0..0..2..1....0..0..0..1....2..1..3..3....1..3..2..2

..1..3..1..2....0..1..3..1....0..1..3..3....3..0..3..2....1..1..3..3

..1..2..1..3....3..3..1..3....3..2..3..0....2..1..3..3....1..3..2..3

..2..1..2..1....0..1..3..1....3..1..3..3....0..2..2..3....1..1..3..3

CROSSREFS

Sequence in context: A031648 A075784 A126301 * A205275 A133968 A337784

Adjacent sequences:  A205173 A205174 A205175 * A205177 A205178 A205179

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 22 2012

STATUS

approved

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Last modified April 19 13:00 EDT 2021. Contains 343114 sequences. (Running on oeis4.)