OFFSET
3,1
LINKS
Andrew Howroyd, Table of n, a(n) for n = 3..200
Eric Weisstein's World of Mathematics, Minimal Dominating Set
Eric Weisstein's World of Mathematics, Web Graph
FORMULA
Empirical: a(n) = a(n-1)+2*a(n-2)+5*a(n-3) +4*a(n-4)+4*a(n-5)-8*a(n-6) for n>8. - Andrew Howroyd, Aug 01 2017
Empirical g.f.: x^3*(22 + 31*x + 49*x^2 - 24*x^3 + 12*x^4 - 40*x^5) / (1 - x - 2*x^2 - 5*x^3 - 4*x^4 - 4*x^5 + 8*x^6). - Colin Barker, Aug 01 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, Jul 28 2017
EXTENSIONS
Terms a(7) and beyond from Andrew Howroyd, Aug 01 2017
STATUS
approved