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A275668 First occurrence of a value in A268755: a(i) = j iff A268755(j) = i-1 and A268755(j+1) = 0. 2

%I #27 Aug 05 2016 10:35:15

%S 1,3,5,10,12,15,33,35,39,42,45,50,58,68,75,117,119,164,180,189,194,

%T 216,236,246,249,259,262,389,391,404,420,501,552,604,609,658,825,827,

%U 888,910,946,1035,1049,1088,1160,1229,1279,1535,1537,1577,1600,1603,1613,1652,1677,1687,1736,1744,1784,1796,1847,1910,1975,2214,2397,2426,2561,2615,2629

%N First occurrence of a value in A268755: a(i) = j iff A268755(j) = i-1 and A268755(j+1) = 0.

%C Observe that a value k can appear in A268755 only after 0,1,...,k-1 have already appeared. This means that this sequence is strictly increasing.

%C Conjectured to be infinite (this is equivalent to the conjecture that every positive integer eventually appears in A268755). (Proof given in comments of A268755).

%C How fast does it grow? Experimentally, it seems like a(n) ~ n^t, with 1 < t <= 2.

%H László Kozma, <a href="/A275668/b275668.txt">Table of n, a(n) for n = 1..1001</a>

%e For n = 4, a(4) = 10, since the value 3 first appears in A268755 at position 10.

%Y Cf. A268755, A181391.

%K nonn

%O 1,2

%A _László Kozma_, Aug 04 2016

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Last modified September 11 12:23 EDT 2024. Contains 375829 sequences. (Running on oeis4.)