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 one, two, three, four, five, six or eight distinct values for every i,j,k<=n.
A211595
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 one, two, three, four, five, six or eight distinct values for every i,j,k<=n.
Terms
- a(0) =25a(1) =125a(2) =513a(3) =1761a(4) =5489a(5) =16203a(6) =46083a(7) =128451a(8) =352585a(9) =961381a(10) =2606233a(11) =7062319a(12) =19117091a(13) =51884109a(14) =141012935a(15) =384802181a(16) =1052871153a(17) =2893966015a(18) =7980178693a(19) =22106320631a(20) =61443947479a(21) =171516628195a(22) =480331192429
External references
- oeis: A211595