Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #8 Feb 05 2022 23:35:01
%S 1,2,9,12,18,21,24,27,30,33,36,39,45,48,51,54,57,60,63,66,69,72,75,78,
%T 81,84,87,90,93,96,99,102,105,108,111,114,117,120,126,129,132,135,138,
%U 141,144,147,150,153,156,159,162,164,165,168,171,174,177,180,183,186,189,192
%N Positive numbers k such that 2k cannot be written as 3^i (i >= 1) plus a prime.
%C A350629 divided by 2.
%Y Cf. A006285, A058517, A350628, A350629, A350957, A350958.
%K nonn
%O 1,2
%A _N. J. A. Sloane_, Feb 05 2022