1, 2, 5, 10, 17, 26, ?Series teasers are where you try to complete the sequence of a series of letters, numbers or objects.
What is the next number in this pattern and what are the two ways of working it out?
1, 2, 5, 10, 17, 26, ?
The first way of working it out is to square each number in order (0, 1, 2, 3, 4, 5) and each time, add one.
The second way is to add each odd number in order (1, 3, 5, 7, 9) to the previous term.
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