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 A194174 #9 Nov 12 2017 02:52:03
%S A194174 0,1,2,4,6,9,12,16,20,24,29,35,41,48,55,63,71,79,88,98,108,119,131,
%T A194174 143,156,169,182,196,210,225,240,256,273,290,308,326,344,363,382,402,
%U A194174 423,444,466,488,511,534,558,582,606,631,657,683,710,737,765,793
%N A194174 Partial sums of A194173.
%H A194174 G. C. Greubel, <a href="/A194174/b194174.txt">Table of n, a(n) for n = 1..1000</a>
%t A194174 r = Sqrt[6];
%t A194174 a[n_] := Floor[Sum[FractionalPart[k*r], {k, 1, n}]]
%t A194174 Table[a[n], {n, 1, 90}] (* A194173 *)
%t A194174 s[n_] := Sum[a[k], {k, 1, n}]
%t A194174 Table[s[n], {n, 1, 100}] (* A194174 *)
%Y A194174 Cf. A194173.
%K A194174 nonn
%O A194174 1,3
%A A194174 _Clark Kimberling_, Aug 18 2011