OFFSET
1,2
EXAMPLE
a(5) = 19 because a(5) = q(b(5)) = q(9) = 19, q = noncomposite, b = nonprime.
MATHEMATICA
Join[{1}, Table[Prime[ResourceFunction["Composite"][n] - 1], {n, 1, 100}]]
CROSSREFS
KEYWORD
nonn
AUTHOR
Jaroslav Krizek, Mar 13 2010
EXTENSIONS
a(34)-a(60) from Terry D. Grant, Aug 16 2016
STATUS
approved