Using this general rule it is possible to find any term within the sequence without writing down each number. Eg, to find the 20th term use 𝒏 = 20 in the rule for the 𝒏th term, 5𝒏 + 2 = 5 ...

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 ...

Learn how to find the 𝒏th term of an arithmetic sequence with this BBC Bitesize Maths article. For students between the ages of 11 and 14.