Number of arrangements of n+1 numbers x(i) in -6..6 with the sum of x(i)*x(i+1) equal to zero.
A188355
Number of arrangements of n+1 numbers x(i) in -6..6 with the sum of x(i)*x(i+1) equal to zero.
Terms
- a(0) =25a(1) =325a(2) =1205a(3) =14477a(4) =100885a(5) =1171345a(6) =11535493a(7) =136061137a(8) =1540834589a(9) =18592832393a(10) =222616829157
External references
- oeis: A188355