But that would mean:

y n y n y n y n y n
1, 2, 3, 4, 5, 6, 7, 8, 9, 10

1, 3, 5, 7, 9

then we have

N Y N Y N
2, 4, 6, 8, 10

1, 3, 5, 7, 9, 4, 8
...

And in the description it says
1, 3, 5, 7, 9, 2, 4, 6, 8, 4
what am i missing?