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 A023120 Signature sequence of 1/sqrt(7) (arrange the numbers i+j*x (i,j >= 1) in increasing order; the sequence of i's is the signature of x). 2

%I #9 Mar 30 2012 18:55:51

%S 1,1,1,2,1,2,1,2,1,3,2,1,3,2,1,3,2,4,1,3,2,4,1,3,2,4,1,3,5,2,4,1,3,5,

%T 2,4,1,3,5,2,4,1,6,3,5,2,4,1,6,3,5,2,4,1,6,3,5,2,7,4,1,6,3,5,2,7,4,1,

%U 6,3,5,2,7,4,1,6,3,8,5,2,7,4,1

%N Signature sequence of 1/sqrt(7) (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="/A023120/b023120.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 1,4

%A _Clark Kimberling_

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Last modified June 3 10:25 EDT 2023. Contains 363110 sequences. (Running on oeis4.)