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A221780 T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out left turns 6
1, 3, 1, 8, 25, 1, 21, 258, 184, 1, 55, 2631, 7676, 1367, 1, 144, 26861, 311500, 230621, 10179, 1, 377, 273816, 12449782, 36959565, 6911480, 75782, 1, 987, 2792384, 496125037, 5758151603, 4383899151, 207263892, 564169, 1, 2584, 28476902 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Table starts

.1.......3..........8...........21............55..........144.........377

.1......25........258.........2631.........26861.......273816.....2792384

.1.....184.......7676.......311500......12449782....496125037.19763197787

.1....1367.....230621.....36959565....5758151603.889201607649

.1...10179....6911480...4383899151.2659707427087

.1...75782..207263892.519828193272

.1..564169.6215606652

.1.4200043

.1

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..48

EXAMPLE

Some solutions for n=3 k=4

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

..0..2..3..1....0..2..1..0....1..0..2..0....0..0..4..0....1..4..3..1

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

CROSSREFS

Row 1 is A001906

Sequence in context: A193602 A221125 A049967 * A221723 A082171 A164795

Adjacent sequences:  A221777 A221778 A221779 * A221781 A221782 A221783

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 25 2013

STATUS

approved

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Last modified October 4 19:10 EDT 2022. Contains 357239 sequences. (Running on oeis4.)