The Titius_Bode  "Law"

In 1766, Johann Titius, and then in 1772, Johann Bode, proposed similar versions of what became known as the Titius-Bode law. This law "predicted" the spacings of planets' orbits around the Sun, as follows:
 
 
 

n
number
Add 4
Divide by 10
Actual semi-major axis
Planet?
1
0
4
0.4
0.39 AU
Mercury
2
3
7
0.7
0.72 AU
Venus
3
6
10
1.0
1.00 AU
Earth
4
12
16
1.6
1.52 AU
Mars
5
24
28
2.8
2.8 AU
.....
6
48
52
5.2
5.2 AU
Jupiter
7
96
100
10.0
9.56 AU
Saturn
8
192
196
19.6
19.6 AU
...
9
384
388
38.8
38.8 AU
...
10
768
772
77.2
77.2 AU
...

One can even develop a formula for this "law": after Mercury, "double" the number, add 4, and divide by 10:

distance = 0.4 + 0.3 * 2n-2
where n stands for the second (n=2), third (n=3), etc. planet, and the formula starts with Venus (n=2).

Is this a law of physics on par with Kepler's laws and Newton's laws? How would we determine this? This "law" predicts the existence of planets at 2.8 and 19.6 AU.

... the discovery of Uranus ...