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 A004375 #14 Oct 25 2023 23:54:30
%S A004375 1,56,1953,54740,1353275,30872016,666563898,13834413152,278818865325,
%T A004375 5494563394320,106395830418878,2031659407077300,38359579905883600,
%U A004375 717595238609316480,13321581681795883020,245722278467924356560,4507944342815596914910
%N A004375 Binomial coefficient C(7n,n-7).
%D A004375 M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math. Series 55, 1964 (and various reprintings), p. 828.
%H A004375 Vincenzo Librandi, <a href="/A004375/b004375.txt">Table of n, a(n) for n = 7..820</a>
%H A004375 M. Abramowitz and I. A. Stegun, eds., <a href="http://www.convertit.com/Go/ConvertIt/Reference/AMS55.ASP">Handbook of Mathematical Functions</a>, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy].
%t A004375 Table[Binomial[7 n, n - 7], {n, 7, 20}] (* _Vincenzo Librandi_, Feb 02 2017 *)
%o A004375 (Magma) [Binomial(7*n, n-7): n in [7..30]]; // _Vincenzo Librandi_, Feb 02 2017
%K A004375 nonn,easy
%O A004375 7,2
%A A004375 _N. J. A. Sloane_