A186217 - OEIS

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A186217

Number of (n+1)X8 0..2 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant

0

353985, 213108423, 43035959317, 13767728347159, 3611859394076247

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

OFFSET

1,1

COMMENTS

Column 7 of A186218

LINKS

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

EXAMPLE

Some solutions for 3X8

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

..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0

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

CROSSREFS

Sequence in context: A284081 A050515 A179709 * A237411 A235980 A169806

Adjacent sequences: A186214 A186215 A186216 * A186218 A186219 A186220

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 15 2011

STATUS

approved