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A186138 Number of (n+1)X7 0..2 arrays with no 2X2 subblock trace equal to any horizontal or vertical neighbor 2X2 subblock trace 1
1304424, 297562572, 71683161894, 17226840778164, 4163686846399494, 1006890732907711236, 243566994040674992586, 58923376595033869477548, 14255041036793840265910500, 3448666147857395420772494514 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A186141

LINKS

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

EXAMPLE

Some solutions for 3X7

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

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

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

CROSSREFS

Sequence in context: A254194 A254187 A253799 * A066702 A261731 A141592

Adjacent sequences:  A186135 A186136 A186137 * A186139 A186140 A186141

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 13 2011

STATUS

approved

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Last modified July 24 11:51 EDT 2021. Contains 346273 sequences. (Running on oeis4.)