Number of -2..2 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.

A211580

Number of -2..2 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) =24a(1) =116a(2) =396a(3) =1108a(4) =2954a(5) =7640a(6) =19676a(7) =51060a(8) =133728a(9) =356546a(10) =961630a(11) =2639484a(12) =7312996a(13) =20540736a(14) =58061306a(15) =165704028a(16) =474754182a(17) =1368989652a(18) =3956576274a(19) =11483585258a(20) =33373408392a(21) =97258918906a(22) =283647632398a(23) =828748613072

External references