Number of isomorphism classes of connected 3-regular loopless simple graphs with n vertices and with semi-edges allowed.

A243393

Number of isomorphism classes of connected 3-regular loopless simple graphs with n vertices and with semi-edges allowed.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =10a(5) =29a(6) =64a(7) =194a(8) =531a(9) =1733a(10) =5524a(11) =19430a(12) =69322a(13) =262044a(14) =1016740a(15) =4101318a(16) =16996157a(17) =72556640a(18) =317558689a(19) =1424644848a(20) =6536588420a(21) =30647561117a(22) =146647344812a(23) =715511358833

External references