Number of arrangements of 9 nonzero numbers x(i) in -n..n with the sum of trunc(x(i)/x(i+1)) equal to zero.
A189552
Number of arrangements of 9 nonzero numbers x(i) in -n..n with the sum of trunc(x(i)/x(i+1)) equal to zero.
Terms
- a(0) =140a(1) =28440a(2) =977092a(3) =11544464a(4) =80270588a(5) =379997096a(6) =1456853916a(7) =4628970120a(8) =12936888748a(9) =32366459464a(10) =75421739904a(11) =160238955844a(12) =324918108616a(13) =626280932600
External references
- oeis: A189552