Date: 02/14/2002 at 17:57:44 From: Vanessa Subject: Find the 6 missing numbers in number sequences I can't figure the answer out. I can't seem to find the next six numbers.. 1,11,21,1211,111221,_,_,_,_,_,_. Thanks.
Date: 02/15/2002 at 12:21:02 From: Doctor Douglas Subject: Re: Find the 6 missing numbers in number sequences Hi, Vanessa, and thanks for writing. This is a famous sequence known as the "look-and-say" sequence. You can probably figure out how the whole sequence works just from that hint alone (try it!). You can find out lots more interesting information about this and closely related sequences at the following sites: 121, 111211, 311221 Puzzle http://mathforum.org/dr.math/problems/joey.10.23.01.html Look and Say Sequence: MathWorld - Eric Weisstein http://mathworld.wolfram.com/LookandSaySequence.html Conway's Constant - Steven Finch http://pauillac.inria.fr/algo/bsolve/constant/cnwy/cnwy.html Conway Sequence - Torsten Sillke http://www.mathematik.uni-bielefeld.de/~sillke/SEQUENCES/series000 I hope this helps. - Doctor Douglas, The Math Forum http://mathforum.org/dr.math/
Search the Dr. Math Library:
Ask Dr. MathTM
© 1994-2015 The Math Forum