Missing MiG numbers?

[seadude]

While working on all the 1/144 scale MiG aircraft for my Area 51/Red Eagles model displays, I couldn't help but notice the following when it came to MiG aircraft numbers:

All numbers for actual Soviet/Russian aircraft
MiG-15, 17, 19, 21, 23, 25, 27, 29, 31

But what about MiG-16, 18, 20, 22, 24, 26, 28, 30?  Why do the Russians skip the "even" numbers and only use the odd numbers for their aircraft? I never understood this. 

[TomZ]

The odd numbers were for fighters, the even numbers were used for bombers/attack aircraft.
And MiG did not build any bombers after the MiG-6....

The odd one out was the Mig-8 experimental aircraft.
https://en.wikipedia.org/wiki/Mikoyan-Gurevich_MiG-8


TomZ

[PR19_Kit]

The odd one out was the Mig-8 experimental aircraft.
https://en.wikipedia.org/wiki/Mikoyan-Gurevich_MiG-8

'Odd' is right! 

[AS.12]

The odd one out was the Mig-8 experimental aircraft.

Received an even number being a "not fighter" which was in line with other transport and miscellaneous types