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 two, four, five, six, seven or eight distinct values for every i,j,k<=n.

A211599

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 two, four, five, six, seven or eight distinct values for every i,j,k<=n.

Terms

    a(0) =24a(1) =108a(2) =398a(3) =1378a(4) =4458a(5) =13916a(6) =42036a(7) =124830a(8) =364224a(9) =1054104a(10) =3021982a(11) =8631468a(12) =24531936a(13) =69625326a(14) =197129902a(15) =558033010a(16) =1578078446a(17) =4464721270a(18) =12628681890a(19) =35747573656a(20) =101207342666a(21) =286778663632a(22) =812918632000

External references