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 A194207 #9 Nov 12 2017 02:52:45
%S A194207 0,0,0,1,3,5,8,12,16,20,25,31,37,44,51,59,67,76,85,95,106,117,129,141,
%T A194207 154,167,181,196,211,226,242,258,275,293,312,331,350,369,389,410,431,
%U A194207 453,475,498,521,545,569,594,620,646,672,699,726,754,783,812,842
%N A194207 Partial sums of A194206.
%H A194207 G. C. Greubel, <a href="/A194207/b194207.txt">Table of n, a(n) for n = 1..1000</a>
%t A194207 r = Pi;
%t A194207 a[n_] := Floor[Sum[FractionalPart[k*r], {k, 1, n}]]
%t A194207 Table[a[n], {n, 1, 90}] (* A194206 *)
%t A194207 s[n_] := Sum[a[k], {k, 1, n}]
%t A194207 Table[s[n], {n, 1, 100}] (* A194207 *)
%Y A194207 Cf. A194206.
%K A194207 nonn
%O A194207 1,5
%A A194207 _Clark Kimberling_, Aug 19 2011