This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A194295 #5 Mar 30 2012 18:57:42 %S A194295 1,2,2,3,3,3,4,4,4,4,4,5,6,5,5,6,7,5,7,6,5,7,8,6,7,8,7,6,8,8,8,7,9,8, %T A194295 8,8,9,9,9,9,9,10,8,10,8,10,10,10,10,10,10,9,11,10,10,11,11,11,11,10, %U A194295 11,12,11,11,11,11,12,12,12,12,12,12,12,12,12,12,12,12,12,13,13 %N A194295 Triangular array: g(n,k)=number of fractional parts (i*r) in interval [(k-1)/n, k/n], for 1<=i<=n, 1<=k<=n^2, r=(1+sqrt(5))/2, the golden ratio. %C A194295 See A194285. %e A194295 First eight rows: %e A194295 1 %e A194295 2..2 %e A194295 3..3..3 %e A194295 4..4..4..4 %e A194295 4..5..6..5..5 %e A194295 6..7..5..7..6..5 %e A194295 7..8..6..7..8..7..6 %e A194295 8..8..8..7..9..8..8..8 %t A194295 r = GoldenRatio; %t A194295 f[n_, k_, i_] := If[(k - 1)/n <= FractionalPart[i*r] < k/n, 1, 0] %t A194295 g[n_, k_] := Sum[f[n, k, i], {i, 1, n^2}] %t A194295 TableForm[Table[g[n, k], {n, 1, 14}, {k, 1, n}]] %t A194295 Flatten[%] (* A194295 *) %Y A194295 Cf. A194295. %K A194295 nonn,tabl %O A194295 1,2 %A A194295 _Clark Kimberling_, Aug 21 2011