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%I #6 Jan 17 2016 20:25:33
%S 1,1,2,4,4,7,8,8,8,12,14,15,15,16,16,16,16,21,24,26,27,27,29,30,30,31,
%T 31,31,32,32,32,32,32,38,42,45,47,48,48,51,53,54,54,56,57,57,58,58,58,
%U 60,61,61,62,62,62,63,63,63,63,64,64,64,64,64,64,71,76,80,83,85,86,86,90,93,95,96,96,99,101,102,102,104
%N a(n) = A004001(A087686(n)).
%C Discarding duplicates gives A087686 back, i.e., this set of numbers is closed with respect to A004001.
%H Antti Karttunen, <a href="/A266188/b266188.txt">Table of n, a(n) for n = 1..10000</a>
%F a(n) = A004001(A087686(n)).
%o (Scheme) (define (A266188 n) (A004001 (A087686 n)))
%Y Cf. A004001, A080677, A087686.
%K nonn
%O 1,3
%A _Antti Karttunen_, Jan 10 2016