Here are the first 5 terms of a quadratic sequence.
0381524 0\quad 3\quad 8\quad 15\quad 24\,0381524
Find an expression, in terms of nnn, for the n n\,nth term of this sequence.
201 exam-style questions on Eduqas GCSE Maths The Nth Term of a Quadratic Sequence. Each one has a worked solution and a mark scheme showing where the marks go.