OFFSET
1,4
LINKS
Iain Fox, Table of n, a(n) for n = 1..10000
FORMULA
For n > 2, a(n) = card({k: k > 3; A078496(k) = prime(n)}).
EXAMPLE
PROG
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Serhat Sevki Dincer (sevki(AT)ug.bilkent.edu.tr), Apr 18 2003
STATUS
approved