A205942 - OEIS

A205942

Number of (n+1) X 7 0..3 arrays with no 2 X 2 subblock having the number of clockwise edge increases equal to the number of counterclockwise edge increases in its adjacent leftward or upward neighbors.

4711264, 34647764, 519841120, 6909160028, 103395482496, 1498787263308, 22850275822056, 350243656458156, 5398960736044656, 84190508155837176, 1298216839771776032, 20181211947687559772, 312919261125294119584

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OFFSET

1,1

COMMENTS

Column 6 of A205944.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..22

EXAMPLE

Some solutions for n=4:

..1..2..2..1..0..1..2....0..2..0..3..3..2..0....2..0..0..2..0..3..0

..3..2..2..2..1..1..3....0..2..1..0..2..2..1....2..2..1..3..3..3..1

..0..3..2..2..1..1..0....0..3..2..0..0..3..2....1..3..2..2..3..3..2