A205369 Number of (n+1) X 8 0..3 arrays with the number of clockwise edge increases in every 2 X 2 subblock the same.

62623348, 42290474776, 35270352008656, 32556374834342020, 30703639139829122244, 29055765895488898230908, 27502351524660234481657420

Offset

1,1

Comments

Column 7 of A205370.

Links

Table of n, a(n) for n=1..7.

Example

Some solutions for n=4
..2..1..2..1..1..3..2..0....0..1..1..1..1..3..2..2....3..2..1..1..0..3..3..0
..3..1..1..1..2..2..2..2....0..0..0..0..1..2..2..3....1..1..1..0..0..0..0..0
..1..1..2..1..1..1..2..1....0..1..3..0..1..1..2..3....0..0..0..0..1..2..0..2
..1..2..2..0..1..2..2..1....0..1..3..0..0..1..2..2....2..2..0..1..1..2..0..0
..1..1..2..0..1..1..2..0....0..1..3..3..0..1..1..1....1..2..0..0..1..2..3..3

Crossrefs

Cf. A205370.

Sequence in context: A125063 A205658 A206187 * A157855 A017539 A227150

Adjacent sequences: A205366 A205367 A205368 * A205370 A205371 A205372

Keyword

nonn

Author

R. H. Hardin, Jan 26 2012

Status

approved