T(n,k)=1/4 the number of arrangements of n+1 nonzero numbers x(i) in -k..k with the sum of sign(x(i))*(|x(i)| mod x(i+1)) equal to zero.
A189951
T(n,k)=1/4 the number of arrangements of n+1 nonzero numbers x(i) in -k..k with the sum of sign(x(i))*(|x(i)| mod x(i+1)) equal to zero.
Terms
- a(0) =1a(1) =3a(2) =2a(3) =5a(4) =8a(5) =4a(6) =8a(7) =15a(8) =22a(9) =8a(10) =10a(11) =29a(12) =63a(13) =72a(14) =16a(15) =14a(16) =39a(17) =159a(18) =384a(19) =280a(20) =32a(21) =16a(22) =61a(23) =306a(24) =1246a(25) =2393a(26) =1152a(27) =64a(28) =20a(29) =75
External references
- oeis: A189951