OFFSET
1,2
COMMENTS
Found when generalizing Matula numbers to labeled trees.
EXAMPLE
a(3) = prime(prime(A018252(3))) = prime(prime(6)) = prime(13) = 41.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Raul Eduardo Capela Tello Rato (rtrato(AT)yahoo.com), Oct 20 2010
EXTENSIONS
a(9)-a(15) from Robert G. Wilson v, Mar 07 2017
STATUS
approved