CSPLib prob007:
"Given n in N, find a vector s = (s_1, ..., s_n), such that
- s is a permutation of Z_n = {0,1,...,n-1};
- the interval vector v = (|s_2-s_1|, |s_3-s_2|, ... |s_n-s_{n-1}|) is a permutation of Z_n-{0} = {1,2,...,n-1}.
A vector v satisfying these conditions is called an all-interval series of size n; the problem of finding such a series is the all-interval series problem of size n."
@author Charles Prud'homme
@since 02/08/11