A204081 - OEIS

A204081

Number of nX5 0..3 arrays with every element neighboring horizontally or vertically both a 0 and a 1

0, 100, 5260, 107584, 13346532, 553472676, 35085052464, 1978079099364, 112800441610516, 6486937732574784, 371232918782612700, 21226052616421225444, 1216904061277337280864, 69642151654182867144100

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Column 5 of A204084

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Sequence in context: A035745 A035810 A017763 * A053109 A151647 A245666

Adjacent sequences: A204078 A204079 A204080 * A204082 A204083 A204084

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 10 2012

STATUS

approved