P = 1 / (250>)
And any other sequence would have the same.
And for the case that I provided the actual sequence tossed, that that sequence would have also had the same probability of happening.
Thus, my sequence was NO more probable than that of 50 consecutive heads, correct!
(If you were to specify a pattern afetr the toss -- but before seeing the toss results -- the same. Rigged.)