That is NOT it i know..........it doesn't have enough digits.......but.......look........it is the numbers from 11 - 19....


111213141516171819

if u take the Harm. series......do my "trick"......................it would start as 11...............single digit denomiators would end at 19...........1/9................double digit d. start at 1/10........110..................now........a prime above ten..........can ONLY end in a 1, 3, 7, 9........every prime between 10 - 20...............ends in those and only those...........11, 13, 17, 19.......those are the ONLY primes in those 10 numbers..................so i bet the clue is somewhere in there........................