A023119 - OEIS

%I #13 May 28 2024 06:36:42

%S 1,2,3,1,4,2,5,3,6,1,4,7,2,5,8,3,6,1,9,4,7,2,10,5,8,3,11,6,1,9,4,12,7,

%T 2,10,5,13,8,3,11,6,14,1,9,4,12,7,15,2,10,5,13,8,16,3,11,6,14,1,9,17,

%U 4,12,7,15,2,10,18,5,13,8,16,3,11,19,6,14,1,9,17,4,12,20,7,15,2

%N Signature sequence of 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="/A023119/b023119.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>

%H <a href="/index/Si#signature_sequences">Index entries for sequences related to signature sequences</a>

%Y Cf. A010465.

%K nonn

%O 1,2

%A _Clark Kimberling_