%I #18 Oct 16 2014 00:31:40
%S 2,4,8,14,16,32,64,128,122,244,256,512,866,1024,1766,2048,4006,4096,
%T 8192,8482,12242,16384,32768,52586,65536,105806,131072
%N Even terms in A247665 in order of appearance.
%C What are the terms that are not powers of 2?
%D _Amarnath Murthy_, Email to _N. J. A. Sloane_, Oct 05 2014.
%e Table (extracted from Russ Cox's extended table in A247665) showing index where even numbers appear, the even number, and the number of different prime factors of that term:
%e 3 4 1
%e 7 8 1
%e 15 14 2
%e 31 16 1
%e 63 32 1
%e 127 64 1
%e 255 128 1
%e 511 122 2
%e 1023 244 2
%e 2047 256 1
%e 4095 512 1
%e 8191 866 2
%e 16383 1024 1
%e 32767 1766 2
%e 65535 2048 1
%e 131071 4006 2
%e 262143 4096 1
%e 524287 8192 1
%e 1048575 8482 2
%e 2097151 12242 2
%e 4194303 16384 1
%e 8388607 32768 1
%e 16777215 52586 2
%e 33554431 65536 1
%e 67108863 105806 2
%e 134217727 131072 1
%e ...
%Y Cf. A247665, A248381, A248387, A248388.
%K nonn,more
%O 1,1
%A _N. J. A. Sloane_, Oct 08 2014
%E More terms from _Russ Cox_, Oct 11 2014