Write the first five values in the sequence (b(1) = 1) and (b(n) = b(n - 1) ⋅ n²) for (n ≥ 2).

a) 1, 4, 36, 144, 1728
b) 1, 2, 6, 24, 120
c) 1, 3, 9, 27, 81
d) 1, 8, 64, 512, 4096