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 A113163 #10 Feb 19 2023 12:34:04
%S A113163 21,175,350,210,35,1
%N A113163 a(n) = binomial(5, n) * binomial(7, 5-n).
%C A113163 The sequence sums to binomial(12, 5).
%t A113163 Table[Binomial[5,n]Binomial[7,5-n],{n,0,5}] (* _Harvey P. Dale_, Feb 19 2023 *)
%Y A113163 Cf. A113162.
%K A113163 nonn,easy,fini,full
%O A113163 0,1
%A A113163 _Zerinvary Lajos_, Jan 05 2006
%E A113163 Edited by _Don Reble_, Jan 26 2006