Number of -2..2 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 three, four, five, six or eight distinct values for every i,j,k<=n.

A211592

Number of -2..2 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 three, four, five, six or eight distinct values for every i,j,k<=n.

Terms

    a(0) =16a(1) =52a(2) =144a(3) =392a(4) =996a(5) =2560a(6) =6348a(7) =16060a(8) =39704a(9) =100212a(10) =248468a(11) =627968a(12) =1562796a(13) =3957156a(14) =9879416a(15) =25055268a(16) =62710372a(17) =159230800a(18) =399332700a(19) =1014876884a(20) =2549391768a(21) =6483648532a(22) =16310176212a(23) =41504086096a(24) =104539323212a(25) =266149720452

External references