OFFSET
3,1
LINKS
Eric Weisstein's World of Mathematics, Antiprism Graph
Eric Weisstein's World of Mathematics, Hamiltonian Path
FORMULA
a(n) = A124352(n)/2.
Conjectures from Colin Barker, Mar 29 2020: (Start)
G.f.: 2*x^3*(60 - 96*x - 60*x^2 + 84*x^3 + 61*x^4 - 73*x^5 - 41*x^6 + 15*x^7 + 14*x^8) / ((1 - x)^3*(1 - x - 2*x^2 - x^3)^2).
a(n) = 5*a(n-1) - 6*a(n-2) - 4*a(n-3) + 7*a(n-4) + 5*a(n-5) - 5*a(n-6) - 3*a(n-7) + a(n-8) + a(n-9) for n>11.
(End)
CROSSREFS
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, May 06 2019
EXTENSIONS
a(30) corrected by Georg Fischer, Jan 25 2020
STATUS
approved