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A210155 1/4 the number of (n+1)X8 0..3 arrays with every 2X2 subblock having one, three or four distinct clockwise edge differences 1
502659771, 16211961522199, 520586406508252346, 16724671741551847807857, 537278068297042230986389307, 17260102700582704755575246996125, 554481819709548465938736952622972588 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A210156

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A101641 A227798 A234063 * A348798 A203261 A207041

Adjacent sequences:  A210152 A210153 A210154 * A210156 A210157 A210158

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 18 2012

STATUS

approved

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Last modified November 29 10:31 EST 2021. Contains 349416 sequences. (Running on oeis4.)