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 A194203 #9 Nov 12 2017 02:51:59
%S A194203 0,1,2,4,6,9,12,15,19,24,29,35,41,47,54,62,70,79,88,98,108,119,130,
%T A194203 141,153,166,180,194,208,223,238,254,270,287,305,323,341,360,379,398,
%U A194203 418,439,460,482,504,526,549,573,597,622,647,673,699,726,753,780
%N A194203 Partial sums of A194202.
%H A194203 G. C. Greubel, <a href="/A194203/b194203.txt">Table of n, a(n) for n = 1..1000</a>
%t A194203 r = 2E;
%t A194203 a[n_] := Floor[Sum[FractionalPart[k*r], {k, 1, n}]]
%t A194203 Table[a[n], {n, 1, 90}] (* A194202 *)
%t A194203 s[n_] := Sum[a[k], {k, 1, n}]
%t A194203 Table[s[n], {n, 1, 100}] (* A194203 *)
%Y A194203 Cf. A194202.
%K A194203 nonn
%O A194203 1,3
%A A194203 _Clark Kimberling_, Aug 19 2011