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A195236
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Number of lower triangles of a 6X6 0..n array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by one or less
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1
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2097152, 10322065, 20729610, 31374671, 42029278, 52683885, 63338492, 73993099, 84647706, 95302313, 105956920, 116611527, 127266134, 137920741, 148575348, 159229955, 169884562, 180539169, 191193776, 201848383, 212502990, 223157597
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OFFSET
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1,1
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COMMENTS
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Row 6 of A195232
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..200
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FORMULA
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Empirical: a(n) = 10654607*n - 11243757 for n>3
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EXAMPLE
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Some solutions for n=5 with 0 and 5
..5............5............5............0............5............0
..4.4..........4.4..........4.4..........0.1..........4.4..........1.1
..4.3.3........4.3.3........3.3.3........1.1.2........3.3.3........2.1.2
..3.3.3.2......4.3.3.2......3.2.2.2......1.2.2.3......2.2.2.2......1.1.2.3
..3.2.2.2.1....4.4.3.2.1....2.2.2.1.1....2.2.3.3.4....1.1.1.2.2....2.1.2.3.4
..2.2.1.2.1.0..4.3.3.2.1.0..3.2.2.1.0.0..2.3.2.3.4.5..0.1.1.2.1.2..1.2.2.3.4.5
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CROSSREFS
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Sequence in context: A126435 A011571 A022537 * A068345 A194935 A016999
Adjacent sequences: A195233 A195234 A195235 * A195237 A195238 A195239
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin Sep 13 2011
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STATUS
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approved
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