  In this paper a way is suggested for calculating the probability of
consecutive number strings within a sequence of n numbers randomly drawn
(without replacement) among the set of the first N consecutive numbers, with
N>>n. An explicit derivation is carried out for the special case of
SuperEnalotto, nowadays the most famous lottery in Italy, with N=90 and n=6. It
turns out that, on average, one every three drawings presents one or more
consecutive number strings inside.
