@playnow254,
Sorry, I don't think that proves it can't be a math problem, merely that it isn't a simple arithmetic sequence.
However, I doubt it is straight math. Almost always, a sequence of numbers corresponds to a sequence of something on the Neopets web site.
Possibilities include:
1. Each number turns into a word.
a. The words make a sentence or question and the answer to submit is the answer to the question.
b. We are to submit the next or missing word from the sequence.
2. The numbers just correspond to some sequence on the site.
a. We are to submit the next or missing number. (Next seems unlikely unless there are only 12 items in the related sequence on the site. Otherwise, they probably would have specified that we should find the next number rather than just referring to it as the answer.)
b. We are to combine the numbers in some fashion to find the answer (seems less likely as that would imply that we can find some obvious method of combining them based on figuring out the sequence)
Possible ideas to date:
1. Numbers are coordinates of some kind - but what map or other diagram would they apply to?
2. Numbers map to some set of pages and words (letters?) within the site - Neopedia IDs don't seem to lead anywhere.
3. The errors in the introduction might apply somehow. (Missing been, is for us).
4. The numbers should be turned into a linear sequence of digits that mean something.
5. The something happening in Neopia could very likely refer to the Faeries' Ruin plot (especially since the last two LCs have been related to the plot).
And one additional thought - it is just possible the information required to solve this problem won't be available until after the next step in the plot is released on Friday. They have occasionally done that sort of thing with the Advent Calendar and such, where the required information to complete the LC doesn't show up until later in the week. As an argument against that, however, the pattern is usually discernible earlier.
