[hm2k]

Yes you can: http://www.google.com/xhtml?q=9999999..999999999999999999999...

[roadnottaken]

care to explain?

[ciupicri]

He might be referring to this:

Our systems have detected unusual traffic from your computer network. Please try your request again later. Why did this happen?

IP address: x.y.z.t. Time: 2011-09-01T19:03:40Z URL: http://www.google.com/search?q=9999999..99999999999999999999...

[palish]

No idea why you've been downvoted --- this is what google says for me, too.

[csomar]

I think the mobile version doesn't have the same limitation.