At the point of the 7th & 8th posts in indexes, the pattern is inconsistent

[nileane]

No description provided.

[blankoworld]

Perhaps could it be useful to display it like this:

Post 1
Post 2 | Post 3
Post 4
Post 5
Post 6 | Post 7
Post 8

Then either:

Post 9 | Post 10
Post 11

or:

Post 9
Post 10 | Post 11

It should be good so ;)