Ononot — A sequence satisfies an = na{n-1} - (n-1)a{n-2} with a0 = 1

Guest Session: 1 Question Remaining. Create Account to save progress.

Recursionhard

0:00.0

A sequence satisfies $a_n = na_{n-1} - (n-1)a_{n-2}$ with $a_0 = 1$ and $a_1 = 3$ . Compute $a_4$ .