1/4 the number of arrangements of n+1 nonzero numbers x(i) in -6..6 with the sum of sign(x(i))*(|x(i)| mod x(i+1)) equal to zero.
A189948
1/4 the number of arrangements of n+1 nonzero numbers x(i) in -6..6 with the sum of sign(x(i))*(|x(i)| mod x(i+1)) equal to zero.
Terms
- a(0) =14a(1) =61a(2) =542a(3) =6733a(4) =77459a(5) =839968a(6) =9133420a(7) =101599137a(8) =1148390301a(9) =13075280021a(10) =149477475730
External references
- oeis: A189948