%I #8 Oct 30 2016 13:47:54
%S 3,7,15,31,63,127,219,255,291,439,511,583,819,879,1023,1167,1443,1639,
%T 1747,1759,1915,2047,2115,2335,2887,3187,3279,3339,3495,3519,3831,
%U 4095,4231,4671,5043,5775,5995,6375,6559,6679,6991,7039,7323,7663,8191,8463,8931,9343,10087,10515,11551,11991,12531,12751,12827,13119,13359,13983,14079,14647,15327,16383
%N a(n) = A277715(n) / 3.
%H Antti Karttunen, <a href="/A277716/b277716.txt">Table of n, a(n) for n = 1..444</a>
%F a(n) = A277715(n) / 3.
%o (Scheme) (define (A277716 n) (/ (A277715 n) 3))
%Y Cf. A277715.
%Y Cf. A000225 (seems to be a subsequence from 3 onward).
%K nonn
%O 1,1
%A _Antti Karttunen_, Oct 29 2016