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A282441 T(n,k)=Number of nXk 0..1 arrays with no 1 equal to more than three of its king-move neighbors, with the exception of exactly one element. 7
0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 0, 12, 96, 12, 0, 0, 58, 784, 784, 58, 0, 0, 280, 6498, 10232, 6498, 280, 0, 0, 1276, 50962, 152726, 152726, 50962, 1276, 0, 0, 5592, 378380, 2129756, 3997136, 2129756, 378380, 5592, 0, 0, 24004, 2744000, 28043694, 98841792 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,8

COMMENTS

Table starts

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

.0.....0........2.........12............58.............280..............1276

.0.....2.......96........784..........6498...........50962............378380

.0....12......784......10232........152726.........2129756..........28043694

.0....58.....6498.....152726.......3997136........98841792........2301995900

.0...280....50962....2129756......98841792......4309285780......177265299282

.0..1276...378380...28043694....2301995900....177265299282....12904221882656

.0..5592..2744000..363894560...52857163712...7188315304848...926611650146754

.0.24004.19498404.4627276420.1190131334489.285685036982550.65222398663792276

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..180

FORMULA

Empirical for column k:

k=1: a(n) = a(n-1)

k=2: [order 12]

k=3: [order 18]

k=4: [order 34]

k=5: [order 88]

EXAMPLE

Some solutions for n=4 k=4

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

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

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

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

CROSSREFS

Sequence in context: A122670 A283494 A281034 * A281988 A190389 A285485

Adjacent sequences:  A282438 A282439 A282440 * A282442 A282443 A282444

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Feb 15 2017

STATUS

approved

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Last modified December 13 22:55 EST 2019. Contains 329974 sequences. (Running on oeis4.)