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 A376246 #6 Sep 16 2024 12:36:59
%S A376246 1,7,47,109,823,4757,7582661,3026164178509,277505140475561534945603,
%T A376246 260165888480949800316206335248860247693882947,
%U A376246 1735545885361077128120249087863835952607412447268583818069629193850545735375261166814107
%N A376246 a(n) is the numerator of Sum_{k = 1..n} 1 / (A376244(k) * A376245(k)).
%H A376246 Rémy Sigrist, <a href="/A376246/a376246.gp.txt">PARI program</a>
%o A376246 (PARI) \\ See Links section.
%Y A376246 Cf. A376244, A376245, A376247.
%K A376246 nonn,frac
%O A376246 1,2
%A A376246 _Rémy Sigrist_ and _N. J. A. Sloane_, Sep 16 2024