>>4614468there are 10 characters in a tripcode, each one has 54 different possibilities (26 uppercase, 26 lowercase, the period, and the forwardslash) with the exception of final character which can only be one of the follow 15 characters :-26AEIMQUYcgkosw
Therefore, there are 15 * 54^9 (which is equal to 58564588684700160) possible tripcodes.I can't be bothered to remember the numbers of the unicode character space but you get the idea.
Too bad the search engine is limited by the user's hardware and the fact that it only uses an incredibly small portion of all possible character combinations.