I've recently finished listening to the audiobook version of 'Words of Radiance' by Brandon Sanderson.
Throughout the book (and the preceding book) each chapter has a quote or snippet from another source at the beginning. In many cases these are sort passages from 'The way of kings', 'Words of radiance' or 'The diagram' which are self-explanatory.
However, on two occasions, the quote was simply a string of numbers (which is bizarre to listen to in audiobook format!).
What do these numbers mean? Are they ever explained?