Sequences and series formulas poster (A Level Maths)
A4 portrait. It is drawn in vector form, so it also prints sharply scaled up to A3.
The poster

The maths
The key formulas for sequences and series in A Level Maths. Formulas marked B are given in the exam (we mark them only where our formula sheet confirms it); learn the rest. The organiser and the full formula sheet have the rest.