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A194615
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T(n,k)=Half the number of lower triangles of an (n+1)X(n+1) 0..k array with no element equal to the average of its horizontal and vertical neighbors
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12
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1, 5, 5, 16, 96, 47, 36, 775, 4322, 849, 69, 3638, 132214, 571364, 29241, 117, 12438, 1674043, 86867366, 205801866, 1901849, 184, 34247, 12561823, 3703163910, 214726600125, 202803700252, 234932757, 272, 82057, 66369488, 73569838704
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OFFSET
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1,2
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COMMENTS
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Table starts
.................1.......................5........................16
.................5......................96.......................775
................47....................4322....................132214
...............849..................571364..................86867366
.............29241...............205801866..............214726600125
...........1901849............202803700252..........1988649454264015
.........234932757.........547917448108462......69098146174647014753
.......55047807551.....4059864930297777162.9010212831798851496619501
....24470603864937.82468548660331834255159
.20637055514911557
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LINKS
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EXAMPLE
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Some solutions for 4X4
..2........0........0........2........2........0........0........0
..0.0......1.1......2.0......1.1......0.0......2.0......1.0......1.2
..0.1.0....0.0.2....1.2.2....2.0.0....1.1.1....2.2.0....0.0.1....2.1.1
..2.2.1.0..2.2.2.0..2.1.0.2..1.2.2.1..1.0.2.1..1.2.2.0..1.0.1.0..1.1.0.2
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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