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A186900 Number of (n+1)X8 binary arrays with every 2X2 subblock determinant equal to exactly one or two horizontal and vertical neighbor 2X2 subblock determinants 1
5182, 7240, 35270, 171877, 554824, 2920816, 14050512, 85310077, 380380974, 2084921316, 10171396928, 59609066832, 283945023554, 1585035059879, 7796801707520, 44553039814455, 217880630036290, 1215831257195360 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A186902

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

EXAMPLE

Some solutions for 3X8

..1..1..0..1..1..0..0..0....0..0..1..1..1..0..0..0....0..1..1..0..0..0..1..0

..1..1..0..0..1..1..0..0....0..0..1..1..1..0..1..1....0..0..1..1..1..1..1..1

..0..1..1..0..0..1..0..1....1..1..1..0..1..1..1..0....0..0..0..1..1..1..0..1

CROSSREFS

Sequence in context: A107344 A184000 A247259 * A186847 A185485 A061050

Adjacent sequences: A186897 A186898 A186899 * A186901 A186902 A186903

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 28 2011

STATUS

approved

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Last modified March 31 00:51 EDT 2023. Contains 361623 sequences. (Running on oeis4.)