A222935 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 and antidiagonal neighbors in a random 0..3 nXk array.

2, 2, 4, 8, 16, 8, 16, 48, 64, 16, 24, 256, 512, 232, 32, 64, 1024, 4000, 4096, 1024, 64, 128, 4096, 32760, 63488, 32768, 4096, 128, 232, 15820, 262104, 1047664, 1048352, 262144, 16224, 256, 512, 65536, 2097152, 16776992, 33553920, 16777216, 2097152

Offset: 1

Author

R. H. Hardin Mar 09 2013

Keywords

• nonn
• tabl

Comments

Table starts

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

....4......16........48........256........1024........4096.......15820

....8......64.......512.......4000.......32760......262104.....2097152

...16.....232......4096......63488.....1047664....16776992...268435456

...32....1024.....32768....1048352....33553920..1073741824.34358569712

...64....4096....262144...16777216..1073741824.68719413208

..128...16224...2097152..268435456.34359738368

..256...65536..16777216.4294962688

..512..262144.134217728

.1024.1047680

.2048

Examples

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

Links

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

Crossrefs

Column 1 is A000079

Column 2 is A222381

Column 3 is A001018 except for a(2)

Row 1 is A220172