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 A334764 #20 May 29 2020 02:21:45
%S A334764 1,2,4,8,24,48,96,384,768,1536,6144,12288,36864,147456,294912,589824,
%T A334764 2359296,9437184,18874368,75497472,150994944,301989888,1811939328,
%U A334764 3623878656,10871635968,43486543872,86973087744,347892350976,1391569403904,2783138807808,5566277615616,33397665693696,133590662774784
%N A334764 a(n) = Product_{k=1..n} d(2*k - 1), where d() is the number of divisors function A000005.
%e A334764 a(3) = d(1)*d(3)*d(5) = 1*2*2 = 4.
%t A334764 Rest @ FoldList[Times, 1, DivisorSigma[0, Range[1, 50, 2]]] (* _Amiram Eldar_, May 10 2020 *)
%o A334764 (PARI) a(n) = prod(k=1, n, numdiv(2*k-1)); \\ _Michel Marcus_, May 10 2020
%Y A334764 Cf. A000005, A066843, A099774.
%K A334764 nonn
%O A334764 1,2
%A A334764 _Ctibor O. Zizka_, May 10 2020