OFFSET
0,3
LINKS
Antony Pearson, On Hidden Structures in Contaminated Symbolic Data, Ph. D. thesis, University of Colorado at Boulder (2020) 27835343.
FORMULA
a(n) = A055165(n) / n!.
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Yuval Dekel (dekelyuval(AT)hotmail.com), Nov 08 2003
EXTENSIONS
a(8) from Herman Jamke (hermanjamke(AT)fastmail.fm), Feb 24 2008
a(0)=1 prepended by Alois P. Heinz, Jun 18 2022
STATUS
approved