OFFSET
5,1
COMMENTS
Selkow paper has typographical error a(9) = 469336898. - Sean A. Irvine, Aug 29 2018
LINKS
Andrew Howroyd, Table of n, a(n) for n = 5..50
S. Selkow, The enumeration of labeled graphs by number of cutpoints, Discr. Math. 185 (1998), 183-191.
CROSSREFS
KEYWORD
nonn
AUTHOR
Stanley Selkow (sms(AT)owl.WPI.EDU)
EXTENSIONS
a(9) corrected and more terms from Sean A. Irvine, Aug 29 2018
STATUS
approved