A viral number sequence puzzle challenges players to find the next number in “2, 6, 12, 20, 30, ?”. Test your analytical ...

You will need to be confident with arithmetic sequences and the 𝑛th term rule to understand these other types of sequences. A geometric sequence contains numbers that are multiplied by a ...

Sequence and Series Formulas The nth term, an, of an Arithmetic Progression (A.P) where the first term is 'a' and the common difference is 'd' is given by the formula: an=a+ (n–1)d where, a ...