PDF chapter test TRY NOW

If \(a_1 = 1\) and \(a_2 = 1\) and \(a_n = 2a_{n - a} + a_{n - 2}\), \(n \ge 3\), \(n \in \mathbb{N}\), then find the first six terms of the sequence.
 
\(a_1= \)
 
\(a_2 =\)
 
\(a_3 =\)
 
\(a_4=\)
 
\(a_5=\)
 
\(a_6=\)