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, four, six, seven or eight distinct values for every i,j,k<=n.
A211596
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, four, six, seven or eight distinct values for every i,j,k<=n.
Terms
- a(0) =24a(1) =76a(2) =216a(3) =580a(4) =1528a(5) =4004a(6) =10420a(7) =27296a(8) =71226a(9) =187728a(10) =493256a(11) =1309512a(12) =3466430a(13) =9262568a(14) =24680896a(15) =66292956a(16) =177593130a(17) =478917194a(18) =1288401406a(19) =3484849120a(20) =9405820198a(21) =25497846216a(22) =68995125860a(23) =187353048044a(24) =507965003670
External references
- oeis: A211596