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A221234
T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, with no occupancy greater than 2
5
0, 1, 1, 2, 14, 2, 4, 119, 119, 4, 8, 852, 2372, 852, 8, 16, 6360, 54075, 54075, 6360, 16, 32, 47334, 1211716, 3618339, 1211716, 47334, 32, 64, 351402, 27341781, 245539157, 245539157, 27341781, 351402, 64, 128, 2609499, 616856209, 16783348483
OFFSET
1,4
COMMENTS
Table starts
...0........1...........2.............4..............8.............16
...1.......14.........119...........852...........6360..........47334
...2......119........2372.........54075........1211716.......27341781
...4......852.......54075.......3618339......245539157....16783348483
...8.....6360.....1211716.....245539157....50220166341.10357727346177
..16....47334....27341781...16783348483.10357727346177
..32...351402...616856209.1149649557942
..64..2609499.13916105891
.128.19373481
.256
LINKS
EXAMPLE
Some solutions for n=3 k=4
..0..1..1..0....0..1..0..1....0..0..0..0....1..1..1..0....2..0..1..1
..0..1..2..0....1..0..1..1....2..2..0..2....0..2..1..2....1..1..1..1
..1..2..2..2....2..2..1..2....0..2..2..2....1..0..2..1....0..2..1..1
CROSSREFS
Sequence in context: A196815 A260120 A368758 * A133420 A227628 A298800
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 05 2013
STATUS
approved