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A222448
T(n,k)=Sum of neighbor maps: number of nXk binary arrays indicating the locations of corresponding elements equal to the sum mod 4 of their horizontal, vertical and antidiagonal neighbors in a random 0..3 nXk array
4
2, 2, 2, 8, 14, 8, 16, 64, 64, 16, 24, 210, 420, 210, 24, 64, 1024, 4056, 4056, 1024, 64, 128, 4000, 32720, 65536, 32720, 4000, 128, 232, 16288, 262104, 1048576, 1048576, 262104, 16288, 232, 512, 65536, 2082688, 16750154, 33553664, 16750154, 2082688
OFFSET
1,1
COMMENTS
Table starts
....2......2........8........16.........24.........64.........128........232
....2.....14.......64.......210.......1024.......4000.......16288......65536
....8.....64......420......4056......32720.....262104.....2082688...16777216
...16....210.....4056.....65536....1048576...16750154...268430848.4294967008
...24...1024....32720...1048576...33553664.1073741824.34359738368
...64...4000...262104..16750154.1073741824
..128..16288..2082688.268430848
..232..65536.16777216
..512.260080
.1024
LINKS
EXAMPLE
Some solutions for n=3 k=4
..1..1..1..0....1..1..1..0....1..1..1..1....0..1..0..1....1..1..1..1
..0..1..1..1....0..0..0..1....0..1..1..0....1..1..1..0....1..0..0..0
..0..1..1..0....0..0..0..1....0..1..1..1....0..1..0..0....0..1..0..0
CROSSREFS
Column 1 is A220172
Sequence in context: A339162 A360808 A168272 * A360309 A220254 A220177
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 20 2013
STATUS
approved