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A206510 Number of (n+1)X7 0..2 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards 1
614367, 103812645, 13397007426, 1444445274765, 138401623325535, 12197461566772314, 1009956457230227994, 79674032690709828993, 6046585204361960568003, 444577014495524485388130 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A206512

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..11

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A230009 A156866 A317480 * A172635 A172707 A254913

Adjacent sequences:  A206507 A206508 A206509 * A206511 A206512 A206513

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 08 2012

STATUS

approved

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Last modified September 19 06:13 EDT 2020. Contains 337176 sequences. (Running on oeis4.)