Number of arrangements of 7 nonzero numbers x(i) in -n..n with the sum of floor(x(i)/x(i+1)) equal to zero.

A189503

Number of arrangements of 7 nonzero numbers x(i) in -n..n with the sum of floor(x(i)/x(i+1)) equal to zero.

Terms

    a(0) =40a(1) =1892a(2) =27508a(3) =182634a(4) =787412a(5) =2642358a(6) =7269852a(7) =17692662a(8) =38791846a(9) =78583484a(10) =149461616a(11) =269390980a(12) =462294730a(13) =765448244a(14) =1224516760a(15) =1898713570a(16) =2870678078a(17) =4243248920a(18) =6141093956a(19) =8731426052a(20) =12179866066a(21) =16758644852

External references