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A222935
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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
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7
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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
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OFFSET
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1,1
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COMMENTS
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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
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LINKS
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EXAMPLE
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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
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CROSSREFS
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Column 3 is A001018 except for a(2)
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KEYWORD
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AUTHOR
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STATUS
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approved
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