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 A194308 #8 Apr 10 2021 08:04:37 %S A194308 2,3,1,3,2,3,3,5,4,4,5,7,8,4,8,10,9,10,12,12,11,19,18,18,18,18,18,19, %T A194308 31,31,32,32,32,32,32,34,53,58,55,61,55,57,53,60,60,99,100,100,108, %U A194308 100,100,108,100,100,109,180,182,180,200,182,180,182,200,180,182 %N A194308 Triangular array: g(n,k) = number of fractional parts (i*Pi) in interval [(k-1)/n, k/n], for 1 <= i <= 2^n, 1 <= k <= n. %C A194308 See A194285. %e A194308 First six rows: %e A194308 2; %e A194308 3, 1; %e A194308 3, 2, 3; %e A194308 3, 5, 4, 4; %e A194308 5, 7, 8, 4, 8; %e A194308 10, 9, 10, 12, 12, 11; %t A194308 r = Pi; %t A194308 f[n_, k_, i_] := If[(k - 1)/n <= FractionalPart[i*r] < k/n, 1, 0] %t A194308 g[n_, k_] := Sum[f[n, k, i], {i, 1, 2^n}] %t A194308 TableForm[Table[g[n, k], {n, 1, 14}, {k, 1, n}]] %t A194308 Flatten[%] (* A194308 *) %Y A194308 Cf. A194285. %K A194308 nonn,tabl %O A194308 1,1 %A A194308 _Clark Kimberling_, Aug 21 2011