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 or five distinct values for every i,j,k<=n.

A211570

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 or five distinct values for every i,j,k<=n.

Terms

    a(0) =16a(1) =28a(2) =44a(3) =74a(4) =116a(5) =194a(6) =308a(7) =518a(8) =836a(9) =1418a(10) =2324a(11) =3974a(12) =6596a(13) =11354a(14) =19028a(15) =32918a(16) =55556a(17) =96458a(18) =163604a(19) =284774a(20) =484676a(21) =845114a(22) =1441748a(23) =2516918a(24) =4300676a(25) =7513898a(26) =12852884a(27) =22467974a(28) =38460356a(29) =67256474

External references