%I #9 Feb 20 2023 22:08:38

%S 1,1,1,3,3,3,2,10,3,5,7,13,4

%N Number of connected transitive 4-valent (or quartic) graphs with n nodes.

%D R. C. Read and R. J. Wilson, An Atlas of Graphs, Oxford, 1998.

%Y Cf. A006820, A033301, A033483.

%K nonn,nice

%O 5,4

%A Ronald C. Read

%E a(16)-a(17) from _Sean A. Irvine_, Jul 13 2020