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A220943 T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor 5
0, 1, 1, 2, 20, 2, 4, 208, 208, 4, 8, 2056, 7551, 2056, 8, 16, 20483, 291080, 291080, 20483, 16, 32, 203905, 11115933, 43253705, 11115933, 203905, 32, 64, 2029453, 424939090, 6388528170, 6388528170, 424939090, 2029453, 64, 128, 20199560 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Table starts

...0.........1............2...............4................8...............16

...1........20..........208............2056............20483...........203905

...2.......208.........7551..........291080.........11115933........424939090

...4......2056.......291080........43253705.......6388528170.....944223520057

...8.....20483.....11115933......6388528170....3629112057868.2062231582631930

..16....203905....424939090....944223520057.2062231582631930

..32...2029453..16241930112.139549646254609

..64..20199560.620799451653

.128.201050056

.256

LINKS

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

EXAMPLE

Some solutions for n=3 k=4

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

..0..0..5..1....2..1..2..0....0..3..0..2....1..2..5..0....1..3..3..0

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

CROSSREFS

Column 1 is A000079(n-2)

Sequence in context: A073444 A301637 A210416 * A082259 A342077 A077339

Adjacent sequences:  A220940 A220941 A220942 * A220944 A220945 A220946

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Dec 25 2012

STATUS

approved

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Last modified October 22 16:15 EDT 2021. Contains 348174 sequences. (Running on oeis4.)