Number of arrangements of 8 nonzero numbers x(i) in -n..n with the sum of trunc(x(i)/x(i+1)) equal to zero.

A189551

Number of arrangements of 8 nonzero numbers x(i) in -n..n with the sum of trunc(x(i)/x(i+1)) equal to zero.

Terms

    a(0) =0a(1) =7628a(2) =173792a(3) =1526520a(4) =8485264a(5) =33638540a(6) =111406336a(7) =311438060a(8) =777099536a(9) =1756270204a(10) =3735055528a(11) =7288245592a(12) =13670157716a(13) =24530310400a(14) =42135558056a(15) =69657825372a(16) =112605206044a(17) =176212748340a(18) =270847626492a(19) =404983049496

External references