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%I #6 Jan 24 2016 23:48:00
%S 4,15,27,30,48,54,57,61,86,96,102,105,112,115,119,124,157,172,182,188,
%T 191,202,208,211,218,221,225,233,236,240,245,251,293,314,329,339,345,
%U 348,364,374,380,383,394,400,403,410,413,417,429,435,438,445,448,452,460,463,467,472,481,484,488,493,499,506,558
%N Row 3 of A265903; numbers that occur exactly three times in A004001.
%C Numbers n for which A051135(n) = 3.
%H Antti Karttunen, <a href="/A267103/b267103.txt">Table of n, a(n) for n = 1..8192</a>
%F a(n) = A087686(1+A266109(n)) = A087686(1+A087686(1+A188163(n))).
%o (Scheme, two implementations, the latter requiring also Antti Karttunen's IntSeq-library)
%o (define (A267103 n) (A087686 (+ 1 (A266109 n))))
%o (define A267103 (MATCHING-POS 1 1 (lambda (n) (= 3 (A051135 n)))))
%Y Column 3 of A265901, row 3 of A265903.
%Y Cf. A004001, A051135, A087686, A188163, A266109.
%K nonn
%O 1,1
%A _Antti Karttunen_, Jan 18 2016