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A186935 Number of (n+1)X6 binary arrays with every 2X2 subblock trace equal to exactly one or two horizontal and vertical neighbor 2X2 subblock traces 1
344, 6848, 46960, 400192, 3026432, 25314744, 199197496, 1627815216, 12959411184, 105094646680, 841526384968, 6794773877768, 54572082394368, 439857772138872, 3537187036922272, 28484975285666720, 229175684311650976 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A186939

LINKS

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

EXAMPLE

Some solutions for 4X6

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

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

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

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

CROSSREFS

Sequence in context: A246630 A250921 A262791 * A115221 A065499 A183673

Adjacent sequences:  A186932 A186933 A186934 * A186936 A186937 A186938

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 01 2011

STATUS

approved

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Last modified June 20 17:51 EDT 2019. Contains 324234 sequences. (Running on oeis4.)