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A075160 Prime factorization of n encoded with the run lengths of binary expansion + 1. 2

%I

%S 1,2,3,4,6,5,11,8,7,12,22,9,43,21,10,16,86,13,171,24,23,44,342,17,14,

%T 85,15,41,683,20,1366,32,42,172,19,25,2731,341,87,48,5462,45,10923,88,

%U 18,684,21846,33,27,28,170,169,43691,29,46,81,343,1365,87382,40,174763

%N Prime factorization of n encoded with the run lengths of binary expansion + 1.

%C See the comment at A075158.

%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>

%e a(9) = 7 = 1+6 (1 + 110) as 9 = 3^2 * 2^(1-1). (The run lengths of 6, 110 in binary are 2 and 1).

%Y Inverse of A075159. a(n) = A075158(n-1)+1.

%K nonn

%O 1,2

%A _Antti Karttunen_, Sep 13 2002

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Last modified June 1 07:40 EDT 2020. Contains 334759 sequences. (Running on oeis4.)