Sequences (AQA GCSE Further Maths): Flashcards

List of numbers following a pattern or rule

Each number in the sequence

Position of term (1st term: $n=1$, 2nd: $n=2$, etc.)

Formula for finding any term in the sequence

Sequence with constant difference between terms

$an + b$

Common difference between consecutive terms

Negative

Sequence where nth term contains $n^2$

$an^2 + bn + c$

Constant second differences

Half of constant second difference

Twice the coefficient of $n^2$