Number of inner dual graphs of planar polyhexes with n hexagons having no nontrivial symmetry.

A108072

Number of inner dual graphs of planar polyhexes with n hexagons having no nontrivial symmetry.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =5a(6) =22a(7) =90a(8) =342a(9) =1247a(10) =4491a(11) =16095a(12) =57906a(13) =209170a(14) =760830a(15) =2784913a(16) =10262649a(17) =38051063a(18) =141914613a(19) =532131882a(20) =2005320952a(21) =7591794561a(22) =28863820538a(23) =110172051829a(24) =422060152511

External references