OFFSET
1,1
COMMENTS
A075522(a(n)) > 1.
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
EXAMPLE
11 is a term as 4*11+(11 mod 4) = 44+3 = 47 is prime.
MATHEMATICA
Select[Prime[Range[300]], PrimeQ[4*# + Mod[#, 4]] &] (* Vladimir Joseph Stephan Orlovsky, Feb 17 2012 *)
PROG
(Haskell)
a075521 n = a075521_list !! (n-1)
a075521_list = map a000040 $ filter ((== 1) . a010051' . a075520) [1..]
-- Reinhard Zumkeller, Feb 20 2012
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Sep 19 2002
STATUS
approved