Number of independent vertex sets and vertex covers in the n-triangular honeycomb queen graph.

A289709

Number of independent vertex sets and vertex covers in the n-triangular honeycomb queen graph.

Terms

    a(0) =2a(1) =4a(2) =10a(3) =28a(4) =84a(5) =272a(6) =946a(7) =3486a(8) =13560a(9) =55432a(10) =236852a(11) =1054928a(12) =4881972a(13) =23420436a(14) =116204016a(15) =595246848a(16) =3142169416a(17) =17068245184a(18) =95267426432a(19) =545732236936

External references