(a(i))[1]
State the next term in this sequence.
(a(ii))[1]
State the rule used to generate the next term of this sequence.
(a(iii))[2]
Find an algebraic expression for the $n$th term of this sequence.
(a(iv))[1]
Explain why 300 does not belong to this sequence.
(b(i))[2]
Write down the two terms that come next in this sequence.
(b(ii))[1]
Write down the rule for extending this sequence.