An arithmetic sequence is one where the difference between one term and the next is always the same. For arithmetic sequences, to go from any term to the next the rule is to always add or subtract the ...

Each term in a sequence has a position. The first term is in position 1, the second term is in position 2 and so on. Position to terms rules use algebra to work out what number is in a sequence, if ...

The solution to this month’s puzzle explains how to find a rule behind a given sequence of numbers and challenges readers to take on a ‘lovely’ unsolved problem. Unlike most mathematical functions, ...