A222386 T(n,k)=Sum of neighbor maps: number of nXk binary arrays indicating the locations of corresponding elements equal to the sum mod 3 of their horizontal and antidiagonal neighbors in a random 0..2 nXk array

2, 2, 4, 8, 16, 8, 16, 48, 64, 16, 24, 248, 512, 232, 32, 64, 1024, 3968, 3968, 1024, 64, 128, 3968, 32768, 63488, 32768, 4096, 128, 232, 15872, 262144, 1048576, 1048320, 261376, 16224, 256, 512, 65536, 2093824, 16776896, 33546240, 16777216, 2097152

Offset

1,1

Comments

Table starts

....2.......2.........8.........16..........24..........64.........128

....4......16........48........248........1024........3968.......15872

....8......64.......512.......3968.......32768......262144.....2093824

...16.....232......3968......63488.....1048576....16776896...268369920

...32....1024.....32768....1048320....33546240..1073741712.34359738368

...64....4096....261376...16777216..1073741824.68719469568

..128...16224...2097152..268435072.34359738368

..256...65536..16773120.4294961152

..512..262144.134217728

.1024.1047680

.2048

Links

R. H. Hardin, Table of n, a(n) for n = 1..70

Example

Some solutions for n=3 k=4
..0..1..1..0....0..1..0..0....0..0..1..0....0..0..0..1....1..1..0..1
..1..1..0..1....0..1..0..1....0..0..1..0....1..0..0..0....0..1..0..1
..1..1..1..0....0..1..0..1....0..1..0..0....0..1..1..0....0..0..1..1

Crossrefs

Column 1 is A000079

Row 1 is A220172

Sequence in context: A153999 A154002 A154005 * A222935 A279059 A054243

Adjacent sequences: A222383 A222384 A222385 * A222387 A222388 A222389

Keyword

nonn,tabl

Author

R. H. Hardin Feb 18 2013

Status

approved