1504820domain: NAppears in sequencesNumber of -6..6 arrays x(0..n-1) of n elements with nonzero sum and with zero through n-1 differences all nonzero.at n=5A200163Number of -n..n arrays x(0..5) of 6 elements with nonzero sum and with zero through 5 differences all nonzero.at n=5A200169