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 two, three, four, six, seven or eight distinct values for every i,j,k<=n.
A211760
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 two, three, four, six, seven or eight distinct values for every i,j,k<=n.
Terms
- a(0) =48a(1) =238a(2) =1090a(3) =4700a(4) =19416a(5) =77230a(6) =298248a(7) =1126116a(8) =4173244a(9) =15284832a(10) =55380108a(11) =199716434a(12) =716243222a(13) =2568023112a(14) =9186764004a(15) =32942074532a(16) =118090246196a(17) =424908897976
External references
- oeis: A211760