Add ability to get facts about sequences of numbers

[mmmaaatttttt]

This website has random facts about sequences of integers: https://oeis.org/
looks like they have some json api endpoints too: https://stackoverflow.com/questions/5991756/programmatic-access-to-on-line-encyclopedia-of-integer-sequences

It could be cool to have an endpoint to get a random fact about a sequence of numbers, eg. /v2/sequences?nums=1,2,7,10 would get a random sequence containing the numbers 1, 2, 7, and 10, and return info about it to the user