7, 10, 15, 22 What is the next number in the sequence? What is the 500th term? | MathCelebrity Forum

7, 10, 15, 22 What is the next number in the sequence? What is the 500th term?

math_celebrity

Administrator
Staff member
7, 10, 15, 22
What is the next number in the sequence?
What is the 500th term?

We see that:
1^2 + 6 = 7
2^2 + 6 = 10
3^3 + 6 = 15
4^2 + 6 = 22

We build our function as f(n) = n^2 + 6

Next term in the sequence is f(5)
f(5) = 5^2 + 6
f(5) = 25 + 6
f(5) = 31

Calculate the 500th term:
f(500) = 500^2 + 6
f(500) = 250,000 + 6
f(500) = 250,006
 
Back
Top