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A184153
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T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having at least two equal elements connected horizontally or vertically
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10
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43, 499, 499, 5695, 17203, 5695, 65227, 584143, 584143, 65227, 746503, 19882711, 58656073, 19882711, 746503, 8544883, 676507975, 5910714349, 5910714349, 676507975, 8544883, 97806031, 23019453235, 595270788529, 1764076701091
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OFFSET
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1,1
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COMMENTS
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Table starts
.........43............499...............5695...................65227
........499..........17203.............584143................19882711
.......5695.........584143...........58656073..............5910714349
......65227.......19882711.........5910714349...........1764076701091
.....746503......676507975.......595270788529.........526180845527509
....8544883....23019453235.....59956202692285......156962462690881921
...97806031...783273204631...6038729388705523....46821946289531019895
.1119511003.26652142523719.608216983453837129.13967039613166010435737
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..84
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EXAMPLE
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Some solutions for 4X3 with a(1,1)=0
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..2....0..0..0....0..0..2
..0..0..1....1..3..0....0..0..0....0..2..1....1..2..2....3..2..1....2..1..1
..2..2..2....2..3..0....2..2..0....0..2..2....1..0..0....0..0..0....2..2..0
..2..2..0....0..3..3....2..3..3....0..3..1....1..2..1....1..3..2....3..3..3
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CROSSREFS
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Sequence in context: A140849 A188133 A194784 * A184145 A238202 A008388
Adjacent sequences: A184150 A184151 A184152 * A184154 A184155 A184156
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KEYWORD
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nonn,tabl
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AUTHOR
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R. H. Hardin Jan 09 2011
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STATUS
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approved
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