@psammieT@YorubaHeartland Originally, the odù are 8 in numbers and when turned upside down to generate another 8 odù (odus), making a total of 16.
Further, these 16 odus (odù merindinlogun tí ń bẹ lotu ìfẹ́) are paired (pairwise connection) to generate 256 odus (16*16=256), which is a square matrix..
@psammieT@YorubaHeartland ..with distinct entries of pairs.
Each of these odù has a prescribed interpretation which has been studied over years (just as science : observations, hypothesis, experimentation,etc which are more of oral literature).