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a(n) = lesser prime factor of A175461(n).
2

%I #2 Mar 30 2012 17:26:34

%S 3,3,7,5,3,7,3,5,3,13,3,11,7,3,11,5,3,7,19,5,3,7,5,17,3,11,13,5,3,7,

%T 19,3,17,3,5,3,7,11,3,3,11,19,17,7,3,13,5,7,23,17,3,3,11,7,3,13,5,29,

%U 5,7,13,5,3,3,31,19,23,3,11,5,3,3,13,7,19,3,37,23,5,7,11,5,17,7,5,13,3,3,31

%N a(n) = lesser prime factor of A175461(n).

%Y Cf. A175461, A175483.

%K nonn

%O 1,1

%A _Zak Seidov_, May 27 2010