Please can anyone solve this realy hard sequence problem?

Please can anyone solve this realy hard sequence problem?

Nth term of sequence 1, 3, 15, 61, 213 and also 6th term ...thx

What is the 8th term in the sequence can you help me out with this problem

Show all work. 2, -7, -16, -25, ...

81,27,9,3,_,_

In other words: Pattern 1= 3 line segments (1 triangle) Pattern 2= 9 line segments (4 triangles) Pattern 3= 30 line segments (16 triangles) etc.......

The possible answers are: 1595 800 695 1840 1595 800 695 1840

in the sequence an the n-th term is defined as (an-1-1)2.if a3=64 then what is the value of a1? can anybody show me the shortest method to solve this?

is it 10 or 13 or 5?

A ball is thrown vertically upwards from the ground. It rises to a height of 10m and then falls and bounces. After each bounce it rises vertically to 2/3 the height from which it fell. (i)...

let 〈xn〉n=1...∞ be a sequence satisfying xn+1=xn-xn-1 for each n. Prove that ∀ n ∈ N, xn+6=xn by induction Please help me. I'm reviewing for my final and something...

what is the nth term and the formula for the sequence 2,1,4,3,12,0,0,8,6,8

I am 65 years old and I can not figure this out.!

Trying to find the next number in this sequence of numbers

Hello, could you help me find the formula for this series, please? How do I go about it? 4,9,16,25,...I know it starts with adding 5 and adding 2 more with every number, so adding 7 next,...

Express the sum using summation notation. Thank you.

I ve been tasked to find the answer to the question,the number of the sequence is 17,if the second is 3, what is the first number?help Me with the answer and calculations

AP 1st term=x+1, 2nd term=2x-1, 4th term=2x+5, find x, a, d Please help me how to find even one of these values. I don't even have the sum of given terms, so I really have no...

what is the first term of the sequence An = -n2 and n≥1?? Please Help Solve with step by step solution to problem and the final solution.

First term of sequence is 3 and the common difference is 5. The nth term is the first term in this sequence >1000. Find value of n.