In the following number order, how many times is an odd number followed by an even number but not an odd number before it?
8 2 7 8 6 3 5 2 9 7 2 5 8 2 5 3 6 6 1 4 6 3 9
1
2
2
3
3
4
4
5
In the following number order, how many times is an odd number followed by an even number but not an odd number before it?
8 2 7 8 6 3 5 2 9 7 2 5 8 2 5 3 6 6 1 4 6 3 9