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

5182, 7240, 35270, 171877, 554824, 2920816, 14050512, 85310077, 380380974, 2084921316, 10171396928, 59609066832, 283945023554, 1585035059879, 7796801707520, 44553039814455, 217880630036290, 1215831257195360

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