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%I #4 Aug 25 2014 16:17:49
%S 49,69,109,149,229,269,349,389,469,589,629,749,829,869,949,1069,1189,
%T 1229,1349,1429,1469,1589,1669,1789,1949,2029,2069,2149,2189,2269
%N A137521(n)/5.
%F a(n) = 20p + 9, where p is the n-th prime. - _Charles R Greathouse IV_, Aug 25 2014
%o (PARI) a(n)=20*prime(n)+9 \\ _Charles R Greathouse IV_, Aug 25 2014
%K nonn,base,easy,less
%O 1,1
%A _Odimar Fabeny_, Apr 24 2008