Number of n edge connected achiral planar maps with an external face in which all internal faces are triangles.

A378342

Number of n edge connected achiral planar maps with an external face in which all internal faces are triangles.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =2a(4) =1a(5) =4a(6) =6a(7) =7a(8) =15a(9) =22a(10) =33a(11) =59a(12) =94a(13) =140a(14) =249a(15) =388a(16) =617a(17) =1040a(18) =1675a(19) =2628a(20) =4481a(21) =7108a(22) =11494a(23) =19030a(24) =30885a(25) =49315a(26) =82559a(27) =132406a(28) =215326a(29) =353923

External references