2afdo

2ado, if the attempt is made to use it as an actual scale, would divide the octave into two arithmetically equal parts. The only intervals in it are 1/1 and the just perfect fifth 3/2, since 3/2 is arithmetically halfway between 1/1 and 2/1.

Intervals

#	Cents	Ratio	Interval name
0	0	1/1	perfect unison
1	702	3/2	just perfect fifth