OFFSET
1,1
COMMENTS
Initial terms computed using software at http://users.cecs.anu.edu.au/~bdm/nauty/
LINKS
R. C. Read, The enumeration of locally restricted graphs (I), J. London Math. Soc. 34 (1959) 417-436.
FORMULA
a(n) = N\{S_{2n}[S_7] * S_{7n}[S_2]\}.
Euler transform of A129434. - Andrew Howroyd, Mar 15 2020
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Brendan McKay, Apr 15 2007
EXTENSIONS
Using equation (5.8) of Read 1959, McKay's terms were verified by, and new term a(6) was computed by Jason Kimberley, Nov 09 2009
a(7)-a(10) from Andrew Howroyd, Mar 21 2020
STATUS
approved