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A194339
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Triangular array: g(n,k)=number of fractional parts (i*r) in interval [(k-1)/n, k/n], for 1<=i<=n^2, 1<=k<=n, r=3-sqrt(5).
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2
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1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 6, 4, 5, 5, 5, 6, 7, 7, 6, 7, 6, 7, 8, 7, 7, 7, 8, 7, 9, 7, 9, 7, 9, 8, 9, 9, 9, 9, 9, 9, 9, 10, 8, 10, 10, 10, 10, 9, 12, 10, 9, 11, 9, 11, 11, 10, 11, 12, 11, 11, 11, 11, 12, 10, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 14, 12, 14, 12
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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First eight rows:
1
2..2
3..3..3
4..4..4..4
5..5..6..7..7..6
7..6..7..8..7..7..7
8..7..9..7..9..7..9..8
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MATHEMATICA
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r = 3-Sqrt[5];
f[n_, k_, i_] := If[(k - 1)/n <= FractionalPart[i*r] < k/n, 1, 0]
g[n_, k_] := Sum[f[n, k, i], {i, 1, n^2}]
TableForm[Table[g[n, k], {n, 1, 14}, {k, 1, n}]]
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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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