Number of -3..3 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 one, two, three, four, five, six or eight distinct values for every i,j,k<=n.

A211756

Number of -3..3 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 one, two, three, four, five, six or eight distinct values for every i,j,k<=n.

Terms

    a(0) =49a(1) =343a(2) =1953a(3) =8903a(4) =35361a(5) =130515a(6) =461513a(7) =1597311a(8) =5462319a(9) =18645525a(10) =63611685a(11) =218253317a(12) =751458341a(13) =2608225775a(14) =9093362753a(15) =31967242981a(16) =112856339077a(17) =401509863725

External references