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A200809 T(n,k)=Number of nXk 0..2 arrays with no average of any element and its diagonal, antidiagonal, horizontal and vertical neighbors equal to one 8
2, 6, 6, 10, 62, 10, 22, 378, 378, 22, 52, 2758, 4420, 2758, 52, 114, 21028, 70534, 70534, 21028, 114, 260, 152410, 1258392, 2869182, 1258392, 152410, 260, 600, 1123856, 20829336, 133370844, 133370844, 20829336, 1123856, 600, 1374, 8320912 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

....2........6.........10...........22............52...........114

....6.......62........378.........2758.........21028........152410

...10......378.......4420........70534.......1258392......20829336

...22.....2758......70534......2869182.....133370844....5614238516

...52....21028....1258392....133370844...16571687222.1822875311878

..114...152410...20829336...5614238516.1822875311878

..260..1123856..349133136.241586613760

..600..8320912.5916801764

.1374.61313142

.3162

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..60

EXAMPLE

Some solutions for 5X5

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

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

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

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

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

CROSSREFS

Column 1 is A200572

Sequence in context: A083482 A290701 A200579 * A323444 A099027 A306925

Adjacent sequences:  A200806 A200807 A200808 * A200810 A200811 A200812

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Nov 22 2011

STATUS

approved

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Last modified September 21 04:58 EDT 2020. Contains 337267 sequences. (Running on oeis4.)