Number of arrangements of n+1 nonzero numbers x(i) in -7..7 with the sum of trunc(x(i)/x(i+1)) equal to zero.
A189543
Number of arrangements of n+1 nonzero numbers x(i) in -7..7 with the sum of trunc(x(i)/x(i+1)) equal to zero.
Terms
- a(0) =84a(1) =432a(2) =4620a(3) =56440a(4) =683144a(5) =8655424a(6) =111406336a(7) =1456853916a(8) =19269747584a(9) =256327259704
External references
- oeis: A189543