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A365581
Number of dominating sets in the n-double cone graph.
1
113, 377, 1465, 5617, 21425, 82697, 320225, 1244825, 4858529, 19024217, 74709913, 294150497, 1160734753, 4589261321, 18175460993, 72087537961, 286271974993, 1138057489337, 4528446220985, 18033325101905, 71861106931793, 286523603727881, 1142979289706465
OFFSET
3,1
LINKS
Eric Weisstein's World of Mathematics, Dominating Set
Eric Weisstein's World of Mathematics, Double Cone Graph
FORMULA
a(n) = 4^n + A001644(n)^2. - Christian Sievers, Jun 13 2024
PROG
(PARI) a(n)=4^n+polsym(1+x+x^2-x^3, n)[n+1]^2 \\ Christian Sievers, Jun 13 2024
CROSSREFS
Sequence in context: A101217 A142781 A323176 * A111013 A300537 A342816
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, Sep 10 2023
EXTENSIONS
a(14)-a(15) from Eric W. Weisstein, Feb 09 2024
a(16) and beyond from Christian Sievers, Jun 13 2024
STATUS
approved