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A204084 T(n,k)=Number of nXk 0..3 arrays with every element neighboring horizontally or vertically both a 0 and a 1 8
0, 0, 0, 0, 4, 0, 0, 4, 4, 0, 0, 16, 132, 16, 0, 0, 100, 256, 256, 100, 0, 0, 324, 5260, 11236, 5260, 324, 0, 0, 1296, 37636, 107584, 107584, 37636, 1296, 0, 0, 5476, 321696, 3904576, 13346532, 3904576, 321696, 5476, 0, 0, 21316, 2951524, 76212900 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

Table starts

.0....0.......0..........0.............0................0...................0

.0....4.......4.........16...........100..............324................1296

.0....4.....132........256..........5260............37636..............321696

.0...16.....256......11236........107584..........3904576............76212900

.0..100....5260.....107584......13346532........553472676.........35085052464

.0..324...37636....3904576.....553472676......94591923364......11178644528704

.0.1296..321696...76212900...35085052464...11178644528704....4337212764978412

.0.5476.2951524.1650959424.1978079099364.1741263873230116.1498281295226032144

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..143

EXAMPLE

Some solutions for n=5 k=3

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

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

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

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

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

CROSSREFS

Sequence in context: A203285 A203542 A204301 * A096904 A096406 A189885

Adjacent sequences:  A204081 A204082 A204083 * A204085 A204086 A204087

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 10 2012

STATUS

approved

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Last modified November 17 18:42 EST 2018. Contains 317276 sequences. (Running on oeis4.)