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Positions of prime powers p^e with e <= p within A000961.
3

%I #10 Oct 21 2024 04:36:34

%S 1,2,3,4,5,6,8,9,10,12,13,14,15,16,17,18,20,21,22,23,24,25,26,27,29,

%T 30,31,32,34,35,36,37,38,39,40,41,42,43,44,46,47,48,49,50,51,52,53,54,

%U 55,56,57,58,59,60,61,62,63,64,65,66,67,68,70,72,73,74,75

%N Positions of prime powers p^e with e <= p within A000961.

%H Reinhard Zumkeller, <a href="/A192188/b192188.txt">Table of n, a(n) for n = 1..10000</a>

%F Complement of A192187.

%F a(n) = A095874(A074583(n)).

%F A000961(a(n)) = A074583(n).

%K nonn

%O 1,2

%A _Reinhard Zumkeller_, Jun 26 2011