login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A131271 Ranks in natural order of 2^n increasing real numbers appearing in limit cycles of interval iterations, or Median Spiral Order. 2

%I

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

%N Ranks in natural order of 2^n increasing real numbers appearing in limit cycles of interval iterations, or Median Spiral Order.

%D J. Demongeot, J. Waku, Some computational aspects of interval iterations and applications in demography and physiology, preprint 2007

%D J. Demongeot, J. Waku, Counter-examples for the population size growth in demography. Math. Pop. Studies, 12, 199-210 (2005).

%H J. Demongeot, J. Waku, <a href="http://www.informaworld.com/smpp/content~content=a748720205~db=all~order=page">Counter-examples for the population size growth in demography</a>, Math. Pop. Studies 12 (2005), 199-210.

%F a(n, 2k-1) = a(n-1, k), if we order the 2^n first integers a(n, 2k) = 2^n + 1 - a(n, 2k-1)

%K fini,nonn

%O 1,2

%A J. Demongeot (Jacques.Demongeot(AT)imag.fr), Jun 24 2007

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 23 01:52 EDT 2022. Contains 353959 sequences. (Running on oeis4.)