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 A231687 #7 Sep 20 2017 11:01:20
%S A231687 0,1,17,98,354,979,2275,4676,8772,8773,8789,8870,9126,9751,11047,
%T A231687 13448,17544,24105,24121,24202,24458,25083,26379,28780,32876,39437,
%U A231687 49437,49518,49774,50399,51695,54096,58192,64753,74753,89394,89650,90275,91571,93972,98068,104629,114629,129270,150006,150631,151927,154328,158424,164985,174985,189626,210362,238923
%N A231687 a(n) = Sum_{i=0..n} digsum_9(i)^4, where digsum_9(i) = A053830(i).
%H A231687 Jean Coquet, <a href="https://doi.org/10.1016/0022-314X(86)90067-3">Power sums of digital sums</a>, J. Number Theory 22 (1986), no. 2, 161-176.
%H A231687 P. J. Grabner, P. Kirschenhofer, H. Prodinger, R. F. Tichy, <a href="http://math.sun.ac.za/~hproding/abstract/abs_80.htm">On the moments of the sum-of-digits function</a>, <a href="http://math.sun.ac.za/~hproding/pdffiles/st_andrews.pdf">PDF</a>, Applications of Fibonacci numbers, Vol. 5 (St. Andrews, 1992), 263-271, Kluwer Acad. Publ., Dordrecht, 1993.
%H A231687 J.-L. Mauclaire, Leo Murata, <a href="https://dx.doi.org/10.3792/pjaa.59.274">On q-additive functions. I</a>, Proc. Japan Acad. Ser. A Math. Sci. 59 (1983), no. 6, 274-276.
%H A231687 J.-L. Mauclaire, Leo Murata, <a href="https://dx.doi.org/10.3792/pjaa.59.441">On q-additive functions. II</a>, Proc. Japan Acad. Ser. A Math. Sci. 59 (1983), no. 9, 441-444.
%H A231687 J. R. Trollope, <a href="http://www.jstor.org/stable/2687954">An explicit expression for binary digital sums</a>, Math. Mag. 41 1968 21-25.
%o A231687 (PARI) a(n) = sum(i=0, n, sumdigits(i, 9)^4); \\ _Michel Marcus_, Sep 20 2017
%Y A231687 Cf. A053830, A231684, A231685, A231686.
%K A231687 nonn,base
%O A231687 0,3
%A A231687 _N. J. A. Sloane_, Nov 13 2013