A206108 - OEIS

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A206108

Number of (n+1) X 8 0..3 arrays with the number of clockwise edge increases in 2 X 2 subblocks nondecreasing, and counterclockwise edge increases nonincreasing, rightwards and downwards

21122008, 8315311380, 5144980591044, 3471628061187072, 2387286725178431788, 1650022029893268519364, 1142673565861296088168308, 792068023433294825509173692, 549328820085194431073230757744

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 7 of A206109.

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=4:

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

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

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

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

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

CROSSREFS

Sequence in context: A172729 A174115 A189123 * A034613 A253870 A253877

Adjacent sequences: A206105 A206106 A206107 * A206109 A206110 A206111

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 03 2012

STATUS

approved