All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Numbers > Sequences
Number Series (Posted on 2004-02-14) Difficulty: 4 of 5
Find the next number in the following series:

11, 12, 20, 23, 33, 46, ?, ?

See The Solution Submitted by Ravi Raja    
Rating: 3.0000 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Some Thoughts re(2): No Subject ===> better, best etc att : Gamer | Comment 7 of 11 |
(In reply to re: No Subject by Gamer)

Gamer
I beg to differ about the objectivity of the word "better" or "best". May be we could agree upon "shorter" or " more esthetic ? " ...May be not.
To continue series 1,4.... what is "better"?

a 1,4,7,10,...............arithmetic series
b 1,4,16,64...............geometric
c 1,4,9,16,25,............squares
d 1,4,11,44,111,444.......ones on odd places,fours on even
e 1,4,9,61,52,............squares inverted
f 1,4,11,22,37............a(n)= 2n^2-3n+2
g 1,4,9,22,49............a(n)= n^3-5n^2+11n-6
h 1,4,5,9,14,............fibo with 1,4 initialization etc
etc
In the above series only 2 samples were given. However I wanted to illustrate the folllowing fact: ONE CANNOT DEFINE A SERIES UNAMBIGUOUSLY BY PROVIDING SOME OF ITS MEMBERS.
Please look up SLOANE on the web and try to get definition for any series of yours( SLOANE asks for some 30 numbers!!-)

I hope you agree with me.
Edited on February 29, 2004, 6:00 pm
  Posted by Ady TZIDON on 2004-02-29 17:59:04

Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (2)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information