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Triangular array: g(n,k)=number of fractional parts (i*sqrt(3)) in interval [(k-1)/n, k/n], for 1<=i<=2^n, 1<=k<=n.
2

%I #5 Mar 30 2012 18:57:42

%S 2,2,2,2,3,3,4,3,5,4,6,6,7,7,6,10,10,12,10,10,12,18,18,18,18,19,19,18,

%T 32,32,31,33,31,34,31,32,56,57,57,57,56,57,57,58,57,101,104,101,102,

%U 103,102,103,103,102,103,186,186,186,186,186,186,186,187,187

%N Triangular array: g(n,k)=number of fractional parts (i*sqrt(3)) in interval [(k-1)/n, k/n], for 1<=i<=2^n, 1<=k<=n.

%C See A194285.

%e First eight rows:

%e 2

%e 2...2

%e 2...3...3

%e 4...3...5...4

%e 6...6...7...7...6

%e 10..10..12..10..10..12

%e 18..18..18..18..19..19..18

%e 32..32..31..33..31..34..31..32

%t r = Sqrt[3];

%t f[n_, k_, i_] := If[(k - 1)/n <= FractionalPart[i*r] < k/n, 1, 0]

%t g[n_, k_] := Sum[f[n, k, i], {i, 1, 2^n}]

%t TableForm[Table[g[n, k], {n, 1, 14}, {k, 1, n}]]

%t Flatten[%] (* A194292 *)

%Y Cf. A194285.

%K nonn,tabl

%O 1,1

%A _Clark Kimberling_, Aug 21 2011