login
Position of n in A107896.
2

%I #2 Mar 30 2012 17:26:16

%S 1,2,4,3,5,6,8,7,9,10,11,12,15,13,17,14,16,18,19,20,21,23,22,24,25,28,

%T 26,32,27,33,29,30,34,36,35,31,38,37,39,46,40,41,44,42,45,47,51,49,43,

%U 53,50,58,52,56,55,62,48,61,67,54,60,57,70,64,59,65,66,69,63,71,74,83

%N Position of n in A107896.

%C A107897(n)=pi(A073653(n)). Is A107896 a permutation of natural numbers?

%F a(n)=pi(A073653(n))

%Y Cf. A073653, A107896.

%K nonn

%O 1,2

%A _Zak Seidov_, May 26 2005