%I A160558
%S A160558 0,1,1,2,3,2,2,4,2,5,6,4,7,8,5,8,9,4,10,11,8,12,13,8,12,14,4,15,16,11,
               8,
%T A160558 17,12,11,18,8,19,20,14,21,22,15,20,23,11,8,24,17,25
%N A160558 a(n) is the ordinal number of series in which the value of A160348(n) 
               is defined
%C A160558 a(n)>=a((f(2n+1)-1)/2), where f is defined as in A159885. E.g., for n=4, 
               we have a(4)=3>a(((9*3+1)/4-1)/2)=a(3)=2.
%e A160558 Put a(0)=0. According to example to A160348, in the first series we find 
               A160348(1) and A160348(2), therefore a(1)=a(2)=1. In the second series 
               we find A160348(3), A160348(5), A160348(6) and A160348(8), thus a(3)=a(5)=a(6)=a(8)=2.
%Y A160558 A160348 A160322 A160266 A160267 A159985 A159945 A160198 A006519 A122458
%Y A160558 Sequence in context: A049879 A053812 A017828 this_sequence A023581 A023574 
               A131340
%Y A160558 Adjacent sequences: A160555 A160556 A160557 this_sequence A160559 A160560 
               A160561
%K A160558 nonn,uned
%O A160558 0,4
%A A160558 Vladimir Shevelev (shevelev(AT)bgu.ac.il), May 19 2009