Let's count to infinity!

[Gary]

Spoiler! :

=94

[bmonk]

The percentage of the most commonly used confidence interval in statistical tests for experiments. (At which up to one in twenty results will be false positives.)

Spoiler! :

=95, of course

[Gary]

I was showing this to a friend last night; they noticed an entry seems to be missing. So:
IX

[SpikedMath]

This number upside down: 96
(or should I say rotated by pi)

Spoiler! :

96

[bmonk]

The highest prime of two digits (base 10)

[Gary]

Internally Microsoft calls it "Memphis".

Most of us called it Windows 98.

[bmonk]

The number of bottles of beer on the wall. (Original American version)

[Gary]

The final year of the 1st century.

[SpikedMath]

The number of integer partitions of 13.

[bmonk]

The atomic number of No

[Gary]

APCO for "Stop transmission"

10-3

Lr seem like cheating, and CIII seemed lame.

[bmonk]

The norm of 2+10i.

[Gary]

Could have used 5!, but I thought this form looked better.

[bmonk]

The number of distinct unlabeled trees with ten vertices.

Spoiler! :

106

[SpikedMath]

The exponent of the Mersenne prime 162 259 276 829 213 363 391 578 010 288 127.

That is, the value of k so that the above prime can be written as

[bmonk]

Nine dozen.

[bmonk]

The 24th prime in the Euclid–Mullin sequence.

Spoiler! :

109

[Gary]

bmonk,
Since you're technicaly ineligable, I'll fall back on the Roman standby and offer "Homonym of 6"

Spoiler! :

CIX sounds like six

PS: I'd somewhat given up on this, since you, I and occasionally Mike seem to be the only ones bothering.

[bmonk]

Yep, but we're a long way from infinity, and we can always hope others join in before we get there.

To continue the six theme:

The digits of six, in the base two, as read in base ten.

[Gary]

The smallest three digit palindrome.

EDIT: It's the 2nd smallest. That probably puts it up for grabs again.