A033700 Number of connected transitive 4-valent (or quartic) graphs with n nodes.

1, 1, 1, 3, 3, 3, 2, 10, 3, 5, 7, 13, 4, 12, 4, 24, 10, 9, 5, 60, 8, 13, 13, 28, 7, 40, 7

Offset

5,4

References

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

Links

Table of n, a(n) for n=5..31.

Crossrefs

Column k=4 of A319368.

Cf. A006820, A033301, A033483.

Sequence in context: A200777 A333537 A227827 * A122916 A300372 A132973

Adjacent sequences: A033697 A033698 A033699 * A033701 A033702 A033703

Keyword

nonn,nice,more

Author

Ronald C. Read

Extensions

a(16)-a(17) from Sean A. Irvine, Jul 13 2020

a(18)-a(31) added using A319368 by Andrew Howroyd, Nov 07 2025

Status

approved