A247870 - OEIS

%I #17 Oct 15 2014 15:55:27

%S 7,5,11,5,13,5,7,11,5,17,7,5,13,11,5,7,19,5,7,17,5,5,29,5,11,7,13,5,

%T 17,7,5,11,31,5,7,23,5,19,7,5,29,13,5,11,5,7,5,23,13,7,5,5,7,43,5,11,

%U 17,7,19,5,23,5,11,13,5,41,7,47,17,5,31,11,7,5,13,29,5,7,23,37,11,5,17,7,13,5,43,19,5,5,7,17,5,11

%N Least prime factor of odd numbers congruent to 4 modulo 9.

%H Odimar Fabeny, <a href="/A247870/b247870.txt">Table of n, a(n) for n = 1..10000</a>

%Y Cf. A056608, A247678.

%K nonn,easy

%O 1,1

%A _Odimar Fabeny_, Sep 25 2014