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A221817 T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out straight through or left turns 7
0, 1, 0, 0, 4, 0, 1, 16, 12, 0, 0, 91, 14, 40, 0, 1, 459, 1041, 379, 136, 0, 0, 2429, 7320, 29412, 1052, 460, 0, 1, 12678, 123644, 854959, 574706, 11079, 1556, 0, 0, 66380, 1271018, 35948127, 35993876, 13076919, 47390, 5264, 0, 1, 347305, 17049353 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

Table starts

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

.0.....4.....16........91........459.......2429......12678.......66380

.0....12.....14......1041.......7320.....123644....1271018....17049353

.0....40....379.....29412.....854959...35948127.1290833232.49447514716

.0...136...1052....574706...35993876.4744100774

.0...460..11079..13076919.2428955613

.0..1556..47390.280280821

.0..5264.361950

.0.17808

.0

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..59

EXAMPLE

Some solutions for n=3 k=4

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

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

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

CROSSREFS

Column 2 is A221652

Sequence in context: A335748 A266488 A189355 * A054375 A195739 A323128

Adjacent sequences:  A221814 A221815 A221816 * A221818 A221819 A221820

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 26 2013

STATUS

approved

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Last modified May 15 18:26 EDT 2021. Contains 343920 sequences. (Running on oeis4.)