* Cache is not at the posted coordinates *

All the containers in this series are similar as well as the hides. Neither the puzzles nor the hides should be too difficult although some will be more challenging than others. Those that want a real challenge can attempt to find at least 50 puzzles on the same day and can qualify for the Very Puzzling Day Challenge, GC4GTY0.

87

If you've seen a puzzle similar to the following puzzle where you have to figure out the next number in this sequence, you shouldn't have any problem figuring out the coordinates to this cache.

1
11
21
1211
111221
...?

The cache is located at: 888444440000000991111115566666

You can check your answers for this puzzle on GeoChecker.com.