All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars
 perplexus dot info
 Home > Numbers > Sequences These problems deal with sequences of numbers. Can you spot what the sequences' rules are?
Latest: Deja vu Rating: 5.00
A sequence
142,725,631,254,665,682,354,316,...
is created according to a certain algorithm, for you to discover.

1. Evaluate a9
2. Find the smallest n for which an=an+1

 Page 4 of 26 << prev Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 next >>
A madness sequence (50 digits) |
18 is not enough | Rating: 3.00
Over 18 |
The sum of 2016 terms |
Fibonacci Fib | Rating: 5.00
Posted on 2017-02-23 by Math Man (No Solution Yet, 1 Comments)
Given VI, evaluate VII |
Nothing's perfect. |
Posted on 2016-12-24 by broll (Solution Posted, 1 Comments)
A chain of powers | Rating: 4.00
One to rule them all. |
Posted on 2016-12-18 by broll (Solution Posted, 3 Comments)
Primitive Prime Divisors |
Posted on 2016-12-17 by broll (No Solution Yet, 0 Comments)
Terrific sequence 2 | Rating: 5.00
Posted on 2016-11-20 by Math Man (No Solution Yet, 2 Comments)
In terzo luogo |
6 given, 2 wanted |
Figuring Forty-Nine and Sequence |
Posted on 2016-10-25 by K Sengupta (No Solution Yet, 2 Comments)
Easy sequence |
Posted on 2016-09-20 by Math Man (No Solution Yet, 2 Comments)

 Search: Search body:
Forums (3)