Table 6: Table showing the number of spectral classes for 𝑛 = 1 to 5.

no. classes no. classes total no.
𝑛 our approach from [3] functions

1 1 1 4
2 2 2 16
3 6 6 256
4 18 18 65536
5 206 191 4 . 2 9 × 1 0 9