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 A144987 #4 May 27 2021 14:10:26
%S A144987 3,50,4545,28362567,1497340447522680,4387088233067304774404776830059,
%T A144987 21181904263756953142587802868501086598875135541314844201016311,
%U A144987 850362874661071143418760124561686027269498941223459043945221634054718647025769989728300760240990642339926562157579631197188
%N A144987 Denominators of an Egyptian fraction for 1/sqrt(8) = 0.35355339059327376223...
%t A144987 a = {}; k = N[1/Sqrt[8], 1000]; Do[s = Ceiling[1/k]; AppendTo[a, s]; k = k - 1/s, {n, 1, 10}]; a (*Artur Jasinski*)
%Y A144987 Cf. A069139, A006487, A006526, A006525, A006524, A001466, A110820, A117116, A118323, A118324, A118325, A144835, A132480-A132574, A069261, A144984-A145003.
%K A144987 frac,nonn
%O A144987 1,1
%A A144987 _Artur Jasinski_, Sep 28 2008