133368domain: NAppears in sequencesNumber of -1..1 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having two, four or five distinct values for every i,j,k<=n.at n=15A211526Number of (w,x,y,z) with all terms in {1,...,n} and w > (geometric mean of x,y,z).at n=22A212144