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%I #16 Jul 02 2022 14:43:07
%S 21,33,63,69,81,99,111,123,159,165,183,189,203,207,219,231,237,243,
%T 249,259,261,273,297,303,315,321,363,399,411,423,429,435,441,459,483,
%U 489,495,513,543,561,567,573,585,591,603,615,621,627,633,663,669,693,707,711
%N Odd numbers k such that gcd(k, A007088(k)) != 1.
%e k = 33; gcd(33,A007088(33)) = gcd(33, 100001) = 11, thus k = 33 is a term.
%t Select[Range[1, 700, 2], ! CoprimeQ[#, FromDigits[IntegerDigits[#, 2]]] &] (* _Amiram Eldar_, Jun 08 2022 *)
%o (PARI) isok(k) = (k%2) && (gcd(k, fromdigits(binary(k))) != 1); \\ _Michel Marcus_, Jun 09 2022
%Y Cf. A007088, A354838.
%K nonn,base
%O 1,1
%A _Ctibor O. Zizka_, Jun 08 2022