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A206106 Number of (n+1) X 6 0..3 arrays with the number of clockwise edge increases in 2 X 2 subblocks nondecreasing, and counterclockwise edge increases nonincreasing, rightwards and downwards. 1
574364, 48804116, 5942161220, 816173366244, 115868265653308, 16603949695703620, 2387286725178431788, 343749924935562751988, 49536398579755532266076, 7141814076861761405917992 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A206109.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..70

EXAMPLE

Some solutions for n=4:

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

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

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

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

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

CROSSREFS

Sequence in context: A237173 A090061 A146947 * A232350 A213965 A204731

Adjacent sequences:  A206103 A206104 A206105 * A206107 A206108 A206109

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 03 2012

STATUS

approved

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Last modified September 16 23:53 EDT 2021. Contains 347477 sequences. (Running on oeis4.)