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 A124354 #12 Feb 16 2025 08:33:03
%S A124354 48,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,
%T A124354 100,104,108,112,116,120,124,128,132,136,140,144,148,152,156,160,164,
%U A124354 168,172,176,180,184,188,192,196,200,204,208,212,216,220,224,228,232,236
%N A124354 Orders of the automorphisms groups of the n-antiprism graph.
%H A124354 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/GraphAutomorphism.html">Graph Automorphism</a>
%H A124354 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1).
%F A124354 a(3) = 48, otherwise a(n) = 4n.
%F A124354 From _Chai Wah Wu_, Apr 14 2024: (Start)
%F A124354 a(n) = 2*a(n-1) - a(n-2) for n > 5.
%F A124354 G.f.: x^3*(36*x^2 - 80*x + 48)/(x - 1)^2. (End)
%t A124354 Join[{48},4Range[4,60]] (* _Harvey P. Dale_, Aug 10 2013 *)
%Y A124354 Cf. A124352.
%K A124354 nonn
%O A124354 3,1
%A A124354 _Eric W. Weisstein_, Oct 27 2006