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 three, four, six, seven or eight distinct values for every i,j,k<=n.
A211759
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 three, four, six, seven or eight distinct values for every i,j,k<=n.
Terms
- a(0) =36a(1) =154a(2) =600a(3) =2160a(4) =7520a(5) =25300a(6) =83944a(7) =275424a(8) =896780a(9) =2930032a(10) =9514764a(11) =31283068a(12) =102154068a(13) =339451248a(14) =1118239532a(15) =3758067700a(16) =12492423608a(17) =42409118936a(18) =142090246012a(19) =486328578676
External references
- oeis: A211759