Question 11
Start with the number 1 and create the sequence
$$1,2,4,8,16,22,24,28,\ldots$$
where each number is the sum of the previous number and its final digit. How many numbers in the sequence are less than 1000?
$$1,2,4,8,16,22,24,28,\ldots$$
where each number is the sum of the previous number and its final digit. How many numbers in the sequence are less than 1000?