OFFSET
1,1
EXAMPLE
a(1)=2 because 1*2+1=3 is the smallest prime of the form 1*k+1 with k > 1.
a(4)=7 because 4*7+1=29 is the smallest prime of the form 4*k+1 with k > 4.
a(100)=103 because 100*103+1=10301 is the smallest prime of the form 100*k+1 with k > 100.
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, Sep 10 2002
STATUS
approved