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Numbers k such that there are no 1-digits in the ternary expansion of A048673(k).
6

%I #12 Jan 16 2021 06:38:47

%S 2,6,7,15,22,26,43,50,54,62,65,74,77,87,94,98,103,138,183,190,198,214,

%T 218,221,235,278,302,343,353,406,421,426,430,439,463,465,467,475,498,

%U 506,534,574,578,610,633,646,662,666,682,734,799,843,862,869,870,882,886,910,949,967,977,987,1013,1014,1087,1121

%N Numbers k such that there are no 1-digits in the ternary expansion of A048673(k).

%H Antti Karttunen, <a href="/A340376/b340376.txt">Table of n, a(n) for n = 1..20000</a>

%H <a href="/index/Pri#prime_indices">Index entries for sequences computed from indices in prime factorization</a>

%o (PARI) isA340376(n) = (0==A304759(n));

%Y Positions of zeros in A304759 and in A340378. Positions of 2's in A340381.

%Y Cf. A048673, A340377.

%K nonn

%O 1,1

%A _Antti Karttunen_, Jan 15 2021