The sequence begins with the numbers 2, 5, 11, 23. Each time the previous number is doubled and 1 is added. What number is next?
Show hints
- Check the rule on the transition from 11 to 23.
- Double 23 and add 1.
Show the answer and solution
Answer: 47
After 23, according to the rule, we get 23 × 2 + 1 = 47.