Hello Lads! I think I just figured out how to solve for (prime) a. I followed the hints VQC gave me, and found something pretty damn cool. Anons, please compare these two set of records and tell me what you "c".
I "c" our c value in (-f,1) , and when I subtract it from the similar a[t] value in (e,1) i get 287-280 = 7 = prime a