Number of arrangements of n+1 nonzero numbers x(i) in -n..n with the sum of floor(x(i)/x(i+1)) equal to zero.
A189490
Number of arrangements of n+1 nonzero numbers x(i) in -n..n with the sum of floor(x(i)/x(i+1)) equal to zero.
Terms
- a(0) =0a(1) =12a(2) =152a(3) =3388a(4) =85480a(5) =2642358a(6) =93830584a(7) =3870426602a(8) =179336321514
External references
- oeis: A189490