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 or six distinct values for every i,j,k<=n.

A211735

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 or six distinct values for every i,j,k<=n.

Terms

    a(0) =48a(1) =330a(2) =1336a(3) =4204a(4) =12376a(5) =35520a(6) =101096a(7) =291658a(8) =847968a(9) =2515656a(10) =7544020a(11) =23042956a(12) =71066182a(13) =222455898a(14) =701643848a(15) =2238614428a(16) =7182380086a(17) =23244437414a(18) =75523460968a(19) =246963498566a(20) =809749533116

External references