OFFSET
1,2
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. [From Jason Kimberley, Nov 09 2009]
FORMULA
a(n)=N\{S_n[S_8] * S_{4n}[S_2]\}. - Jason Kimberley, Nov 09 2009
Euler transform of A129436. - Andrew Howroyd, Mar 15 2020
CROSSREFS
KEYWORD
nonn
AUTHOR
Brendan McKay, Apr 15 2007
EXTENSIONS
Using equation (5.8) of Read 1959, McKay's terms verified by, and new term a(11) was computed by Jason Kimberley, Nov 09 2009
a(12)=N{S_12[S_8]*S_48[S_2]} was computed in MAGMA, on one processor of ARCSgrid at UNcle, using 17 GB virtual memory, over 49 real days, with 36 days processor time, by Jason Kimberley, Nov 29 2009
a(13)-a(18) from Andrew Howroyd, Mar 21 2020
STATUS
approved