A302486 - OEIS

%I #35 Sep 23 2021 06:43:33

%S 2,2,4,5,6,8,10,12,15,17,20,23,26,30,33,36,40,45,49,54,58,63,69,74

%N Total domination number of the n-triangular grid graph.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/TotalDominationNumber.html">Total Domination Number</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/TriangularGridGraph.html">Triangular Grid Graph</a>

%F a(n) ~ n^2/10. - _Andrew Howroyd_, May 20 2018

%Y Cf. A251419, A303049.

%K nonn,more

%O 1,1

%A _Eric W. Weisstein_, Apr 08 2018

%E a(11)-a(15) from _Andrew Howroyd_, Apr 18 2018

%E a(16)-a(17) from _Eric W. Weisstein_, Apr 18 2018

%E a(18) from _Eric W. Weisstein_, Apr 20 2018

%E a(19) from _Andrew Howroyd_, May 19 2018

%E a(20)-a(24) from _Eric W. Weisstein_, Sep 22-23 2021