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A225046 Position of the first occurrence of the n-th prime in A225017, or 0 if prime(n) never occurs. 1

%I #15 Apr 29 2013 17:49:57

%S 2,5,4,14,6,7,16,21,23,24,57,122,32,19,20,22,186,177,26,29,27,61,236,

%T 34,160,36,78,54,194,41,87,43,44,188,253,55,118,229,66,59,70,69,60,58,

%U 569,279,147,81,610,74,325,85,101,75,179,459,369,100,97,463,91

%N Position of the first occurrence of the n-th prime in A225017, or 0 if prime(n) never occurs.

%C It appears that a large fraction of terms are relatively small, say a(n)<2*n, but they can be rather large. For example, prime(156)=911 occurs first at n=14424 in A225017, so a(156) = 14424.

%H Alois P. Heinz, <a href="/A225046/b225046.txt">Table of n, a(n) for n = 4..240</a>

%e A225017 begins {1,1,7,1,13,11,...}, with offset 0, and the 4th prime 7 occurs for the first time at A225017(2)=7, so a(4)=2. 11 occurs for the first time at n=5, so a(5)=5.

%Y Cf. A225017.

%K nonn

%O 4,1

%A _John W. Layman_, Apr 25 2013

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Last modified March 19 03:33 EDT 2024. Contains 370952 sequences. (Running on oeis4.)