cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A007337 Signature sequence of sqrt(3).

This page as a plain text file.
%I A007337 M0144 #25 May 27 2024 10:50:19
%S A007337 1,2,1,3,2,4,1,3,5,2,4,6,1,3,5,7,2,4,6,1,8,3,5,7,2,9,4,6,1,8,3,10,5,7,
%T A007337 2,9,4,11,6,1,8,3,10,5,12,7,2,9,4,11,6,13,1,8,3,10,5,12,7,14,2,9,4,11,
%U A007337 6,13,1,8,15,3,10,5,12,7,14,2,9,16,4,11,6,13,1,8,15,3,10,17,5,12,7,14,2,9
%N A007337 Signature sequence of sqrt(3).
%C A007337 Arrange the numbers i+j*x (i,j >= 1) in increasing order; the sequence of i's is the signature of x.
%D A007337 C. Kimberling, "Fractal Sequences and Interspersions", Ars Combinatoria, vol. 45, 1997, p. 157.
%D A007337 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H A007337 T. D. Noe, <a href="/A007337/b007337.txt">Table of n, a(n) for n = 1..1000</a>
%H A007337 C. Kimberling, <a href="http://faculty.evansville.edu/ck6/integer/intersp.html">Interspersions</a>
%H A007337 <a href="/index/Si#signature_sequences">Index entries for sequences related to signature sequences</a>
%t A007337 Take[ Transpose[ Sort[ Flatten[ Table[{i + j*Sqrt[3], i}, {i, 25}, {j, 17}], 1], #1[[1]] < #2[[1]] &]][[2]], 95] (* _Robert G. Wilson v_, Jul 24 2004 *)
%Y A007337 First occurrence of n is given in A022778.
%K A007337 nonn
%O A007337 1,2
%A A007337 _N. J. A. Sloane_, _Clark Kimberling_
%E A007337 More terms from _Robert G. Wilson v_, Jul 24 2004