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A124354
Orders of the automorphisms groups of the n-antiprism graph.
1
48, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152, 156, 160, 164, 168, 172, 176, 180, 184, 188, 192, 196, 200, 204, 208, 212, 216, 220, 224, 228, 232, 236
OFFSET
3,1
FORMULA
a(3) = 48, otherwise a(n) = 4n.
From Chai Wah Wu, Apr 14 2024: (Start)
a(n) = 2*a(n-1) - a(n-2) for n > 5.
G.f.: x^3*(36*x^2 - 80*x + 48)/(x - 1)^2. (End)
MATHEMATICA
Join[{48}, 4Range[4, 60]] (* Harvey P. Dale, Aug 10 2013 *)
CROSSREFS
Cf. A124352.
Sequence in context: A285660 A299585 A203250 * A033979 A033368 A128380
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, Oct 27 2006
STATUS
approved