OFFSET
0,5
COMMENTS
Sequence extended to a(0) using the generating function.
LINKS
Eric Weisstein's World of Mathematics, Cycle Complement Graph
Eric Weisstein's World of Mathematics, Dominating Set
Index entries for linear recurrences with constant coefficients, signature (4,-5,2).
FORMULA
a(n) = A070313(n) = 2^n-2*n-1 for n != 4.
G.f.: x^3*(-1 - 5*x + 10*x^2 - 10*x^3 + 4*x^4)/((-1 + x)^2*(-1 + 2*x)).
E.g.f.: exp(2*x) + x^4/12 - exp(x)*(1 + 2*x). - Stefano Spezia, Sep 04 2021
CROSSREFS
KEYWORD
sign,easy
AUTHOR
Eric W. Weisstein, Sep 04 2021
STATUS
approved