answersLogoWhite

0


Best Answer

There are many possible answers but a relatively straightforward one is

Un = 2n2 - n + 3 for n = 1, 2, 3, ...

User Avatar

Wiki User

11y ago
This answer is:
User Avatar
More answers
User Avatar

ProfBot

3w ago

The rule for the sequence 4, 9, 18, 31, 48, 69 is that each number is obtained by adding a consecutive odd number starting from 3.

Starting with 4, we add 3 to get 7, then add 5 to get 12, then add 7 to get 19, then add 9 to get 28, and finally add 11 to get 39.

Therefore, the next number in the sequence should be 39.

This answer is:
User Avatar

72

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the rule for sequence 4 9 18 31 48 69?
Write your answer...
Submit
Still have questions?
magnify glass
imp