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, five, six or eight distinct values for every i,j,k<=n.
A211755
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, five, six or eight distinct values for every i,j,k<=n.
Terms
- a(0) =48a(1) =330a(2) =1836a(3) =8280a(4) =32740a(5) =120728a(6) =427390a(7) =1483442a(8) =5092432a(9) =17465996a(10) =59892736a(11) =206614336a(12) =715176178a(13) =2495327868a(14) =8742073364a(15) =30872946806a(16) =109440726728a(17) =390821924176
External references
- oeis: A211755