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%I #10 Mar 30 2012 18:55:51
%S 1,2,3,1,4,2,5,3,6,1,4,7,2,5,8,3,6,9,1,4,7,10,2,5,8,11,3,6,9,1,12,4,7,
%T 10,2,13,5,8,11,3,14,6,9,1,12,4,15,7,10,2,13,5,16,8,11,3,14,6,17,9,1,
%U 12,4,15,7,18,10,2,13,5,16,8,19,11,3,14,6,17,9,20,1,12,4,15,7,18,10,21,2
%N Signature sequence of e (arrange the numbers i+j*x (i,j >= 1) in increasing order; the sequence of i's is the signature of x).
%D C. Kimberling, "Fractal Sequences and Interspersions", Ars Combinatoria, vol. 45 p 157 1997.
%H T. D. Noe, <a href="/A023123/b023123.txt">Table of n, a(n) for n=1..1000</a>
%H C. Kimberling, <a href="http://faculty.evansville.edu/ck6/integer/intersp.html">Interspersions</a>
%K nonn
%O 1,2
%A _Clark Kimberling_
%E The a(47) term was missing. Corrected by _T. D. Noe_, Aug 12 2008
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