T(n,k)=Number of arrangements of n+1 nonzero numbers x(i) in -k..k with the sum of floor(x(i)/x(i+1)) equal to zero.
A189498
T(n,k)=Number of arrangements of n+1 nonzero numbers x(i) in -k..k with the sum of floor(x(i)/x(i+1)) equal to zero.
Terms
- a(0) =0a(1) =2a(2) =4a(3) =6a(4) =12a(5) =0a(6) =12a(7) =38a(8) =42a(9) =12a(10) =20a(11) =78a(12) =152a(13) =136a(14) =0a(15) =30a(16) =148a(17) =462a(18) =928a(19) =550a(20) =40a(21) =42a(22) =240a(23) =1088a(24) =3388a(25) =4920a(26) =1892a(27) =0a(28) =56a(29) =380
External references
- oeis: A189498