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 A194340 #5 Mar 30 2012 18:57:43 %S A194340 2,2,2,3,3,2,4,4,4,4,6,6,7,6,7,11,10,10,11,11,11,18,19,17,19,18,19,18, %T A194340 32,31,32,31,33,32,33,32,57,57,56,57,57,57,57,58,56,102,102,103,102, %U A194340 101,105,102,102,102,103,187,184,188,185,186,187,186,187,185,188 %N A194340 Triangular array: g(n,k)=number of fractional parts (i*r) in interval [(k-1)/n, k/n], for 1<=i<=2^n, 1<=k<=n, r=3-sqrt(5). %C A194340 See A194285. %e A194340 First six rows: %e A194340 2 %e A194340 2...2 %e A194340 3...3...2 %e A194340 4...4...4...4 %e A194340 6...6...7...6...7 %e A194340 11..10..10..11..11..11 %t A194340 r = 3-Sqrt[5]; %t A194340 f[n_, k_, i_] := If[(k - 1)/n <= FractionalPart[i*r] < k/n, 1, 0] %t A194340 g[n_, k_] := Sum[f[n, k, i], {i, 1, 2^n}] %t A194340 TableForm[Table[g[n, k], {n, 1, 14}, {k, 1, n}]] %t A194340 Flatten[%] (* A194340 *) %Y A194340 Cf. A194285. %K A194340 nonn,tabl %O A194340 1,1 %A A194340 _Clark Kimberling_, Aug 22 2011