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A116548 a(n) = smallest divisor d of n that occurs earlier in the sequence fewer than a(d) times. 2

%I

%S 1,2,3,2,5,3,7,4,3,5,11,4,13,7,5,8,17,6,19,5,7,11,23,6,5,13,9,7,29,6,

%T 31,8,11,17,7,9,37,19,13,8,41,7,43,11,9,23,47,8,7,10,17,13,53,18,11,

%U 14,19,29,59,10,61,31,21,16,13,11,67,17,23,10,71,12,73,37,15,19,11,13,79,10

%N a(n) = smallest divisor d of n that occurs earlier in the sequence fewer than a(d) times.

%C When n is prime, no smaller divisor is available, so a(n) = n. It can be shown than a(n) < n if n is composite. Similar to Golomb's sequence (A001462), but with the added condition that a(n) divides n.

%Y Cf. A095163, A001462.

%K nonn

%O 1,2

%A _Franklin T. Adams-Watters_, Mar 16 2006

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Last modified April 20 08:39 EDT 2019. Contains 322306 sequences. (Running on oeis4.)