OFFSET
1,5
REFERENCES
R. W. Robinson, Numerical implementation of graph counting algorithms, AGRC Grant, Math. Dept., Univ. Newcastle, Australia, 1977.
LINKS
R. W. Robinson, Table of n, a(n) for n = 1..30
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Nov 13 2006
STATUS
approved