Some persons are sitting around a circular table facing towards the centre of the table. The distance is equal among all the persons and number of persons was not more than 18 persons. Number of persons between Z and N when counted from left of Z was thrice as that of the number of persons seated between Z and L when counted from right of Z. L and N are neighbours of each other. I was seated to the immediate left of J and three persons are sitting between J and K. L was third to the right of K. M was second to the right of O and second to the left of I. L is to the immediate left of N.

How many persons are present in the above arrangement?