%I #5 Nov 25 2013 08:58:00
%S 20,24,28,44,48,52,56,68,75,76,80,88,92,96,104,108,116,124,135,136,
%T 140,147,148,152,160,164,168,172,176,184,188,192,200,208,212,220,224,
%U 232,236,240,244,248,260,264,268,272,284,292,296,304,308,312,316,320,324
%N Numbers whose primal code characteristic = 3, that is, positive n for which A108352(n) = 3.
%H J. Awbrey, <a href="https://oeis.org/wiki/Riffs_and_Rotes">Riffs and Rotes</a>
%Y Cf. A108352, A108353, A108370, A108371, A108372, A108374.
%K nonn
%O 1,1
%A _Jon Awbrey_, Jun 01 2005, extended Jun 30 2005