
Home > Numbers > Sequences
These problems deal with sequences of numbers. Can you spot what the sequences' rules are?

Each of A(1), A(2),..., A(7) is a positive integer such that:
(i) A(6) = 144, and
(ii) A(n+3) = A(n+2)(A(n+1)+A(n)), for n = 1,2,3,4
Find A(7)
Page 1 of 22 
next >>

Fibonacci yields Pythagoras  Posted on 20160705 by Jer (No Solution Yet, 1 Comments) Arithmetic Product Puzzle 2  Posted on 20160614 by K Sengupta (No Solution Yet, 2 Comments) Term Finding with Floor  Posted on 20160609 by K Sengupta (No Solution Yet, 3 Comments) A recursive sequence  Posted on 20160606 by Ady TZIDON (No Solution Yet, 0 Comments) Four Digit Combination Conclusion  Posted on 20160518 by K Sengupta (No Solution Yet, 1 Comments) Terrific sequence  Rating: 5.00 Posted on 20160510 by Math Man (No Solution Yet, 6 Comments) First Term Finding  Posted on 20160504 by K Sengupta (No Solution Yet, 2 Comments) Four From Arithmetic and Geometric  Rating: 4.00 Posted on 20160429 by K Sengupta (No Solution Yet, 3 Comments) LCM and GCD Sequence  Posted on 20160429 by K Sengupta (No Solution Yet, 1 Comments) Complex Ratio and Number Resolution  Posted on 20160413 by K Sengupta (No Solution Yet, 2 Comments) Harmonic Harmony 2  Posted on 20160331 by K Sengupta (No Solution Yet, 1 Comments) Sum from Arithmetic and Geometric  Posted on 20160324 by K Sengupta (No Solution Yet, 5 Comments) 8th Term from Term Product  Posted on 20160307 by K Sengupta (No Solution Yet, 4 Comments) Sum 2001 Terms  Posted on 20160227 by K Sengupta (No Solution Yet, 1 Comments) 

Please log in:
Forums (0)
Newest Problems
Random Problem
FAQ 
About This Site
Site Statistics
New Comments (10)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On
Chatterbox:
