Number of arrangements of 3 nonzero numbers x(i) in -n..n with the sum of floor(x(i)/x(i+1)) equal to zero.

A189499

Number of arrangements of 3 nonzero numbers x(i) in -n..n with the sum of floor(x(i)/x(i+1)) equal to zero.

Terms

    a(0) =4a(1) =12a(2) =38a(3) =78a(4) =148a(5) =240a(6) =380a(7) =554a(8) =788a(9) =1062a(10) =1410a(11) =1806a(12) =2294a(13) =2844a(14) =3498a(15) =4226a(16) =5068a(17) =5988a(18) =7040a(19) =8180a(20) =9466a(21) =10850a(22) =12396a(23) =14046a(24) =15876a(25) =17824a(26) =19960a(27) =22226a(28) =24696a(29) =27296

External references