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 A093698 #9 Sep 08 2022 08:45:13
%S A093698 1,2,4,9,21,45,98,210,452,971,2085,4478,9618,20654,44355,95252,204549,
%T A093698 439262,943298,2025695,4350099,9341661,20060837,43079834,92512195,
%U A093698 198666181,426627554,916165344,1967427861,4224971416,9072954499
%N A093698 a(n) = floor( e^((n/2)*arccosh(1+sqrt(2))) ).
%H A093698 G. C. Greubel, <a href="/A093698/b093698.txt">Table of n, a(n) for n = 0..1000</a>
%t A093698 Table[ Floor[E^(n/2*ArcCosh[1 + Sqrt[2]])], {n, 0, 30}]
%o A093698 (PARI) for(n=0,30, print1(floor(exp((n/2)*acosh(1+sqrt(2)))), ", ")) \\ _G. C. Greubel_, Oct 01 2018
%o A093698 (Magma) [Floor(Exp((n/2)*Argcosh(1+Sqrt(2)))): n in [0..30]]; // _G. C. Greubel_, Oct 01 2018
%Y A093698 Cf. A093568.
%K A093698 easy,nonn
%O A093698 0,2
%A A093698 _Robert G. Wilson v_, Apr 09 2004