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A183826 1/256 the number of (n+1)X8 0..3 arrays with no 2X2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor 0
11390625, 376152548283, 12225396762980829, 399185865558804067443, 13018181193595377140956551 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A183827

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions with upper left block zero for 3X8

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

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

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

CROSSREFS

Sequence in context: A233847 A069341 A204790 * A323331 A072142 A043674

Adjacent sequences:  A183823 A183824 A183825 * A183827 A183828 A183829

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 07 2011

STATUS

approved

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Last modified May 26 13:17 EDT 2022. Contains 354092 sequences. (Running on oeis4.)