%I A089960
%S A089960 1,4,6,7,9,12,14,17,20,22,25,27,28,30,33,34,35,38,40,41,43,46,48,49,51,
%T A089960 54
%N A089960 Positions in A089959 where 4 occurs.
%C A089960 a(n)/n tends to 2.
%F A089960 n = the set of natural numbers generating "4" using the formula of A089959: 
               floor( 1/({n*k}*(1 - {n*k}) where k = .6180339... = phi^(-1).; {x} 
               = fractional part.
%e A089960 a(5) = 9 since A089959(9) = 4.
%Y A089960 Cf. A089959.
%Y A089960 Sequence in context: A002481 A085817 A047508 this_sequence A067888 A043337 
               A023710
%Y A089960 Adjacent sequences: A089957 A089958 A089959 this_sequence A089961 A089962 
               A089963
%K A089960 nonn
%O A089960 1,2
%A A089960 Gary W. Adamson (qntmpkt(AT)yahoo.com), Nov 16 2003