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, four, five, six or eight distinct values for every i,j,k<=n.
A211752
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, four, five, six or eight distinct values for every i,j,k<=n.
Terms
- a(0) =48a(1) =306a(2) =1484a(3) =6086a(4) =22712a(5) =80874a(6) =280918a(7) =968918a(8) =3331390a(9) =11529150a(10) =40039718a(11) =140472370a(12) =495086118a(13) =1762513772a(14) =6298664834a(15) =22708461010a(16) =82096862576a(17) =299009175572
External references
- oeis: A211752