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Indices of composite terms in A247665.
5

%I #15 Oct 28 2014 11:03:37

%S 3,6,7,13,15,27,28,31,32,40,50,55,57,63,65,82,101,111,112,115,116,127,

%T 131,132,165,172,203,204,223,225,231,233,255,263,264,278,331,332,358,

%U 407,408,417,447,448,451,455,463,467,511,527,557,661,663,665,717,761

%N Indices of composite terms in A247665.

%H Russ Cox and N. J. A. Sloane, <a href="/A248388/b248388.txt">Table of n, a(n) for n = 1..19456</a>

%Y Cf. A247665, A248387, A248379, A248390.

%K nonn

%O 1,1

%A _Russ Cox_ and _N. J. A. Sloane_, Oct 16 2014