The posted Coordinates are bogus. There is not need to go there.

The Puzzle

As said above, the cache, or the first stage, is not at the posted coords. Sure go there, but don't waste your time there too long! You probably think that the cache name suggests the cache is about 'PATTERNS'. How observant of you. You're absoloutley right. The challenge is:

I will give you a algebraic expression that represents a pattern.
Figure out the pattern rule.
Draw out the pattern.
Make a 'term and values' chart.
The previous two instructions aren't necessary, but will help you quite a bit.
Assume that the pattern starts at the prime number, 'five'.
 

The pattern rule is very simple: 2n+3

Pretend the pattern is add one every time. It is not but pretend. In term1, there will be one block, in term two ther will be two blocks, and so on. I'm just making sure you know what I mean when I say 'block(s) in the following section.

The Formula:

You know the pattern rule now right? If not, go back and solve it. If you have the pattern rule, answer the following questions, and substitue in the answers.

THE CACHE IS AT N45 18.ABC W075 53.DEF

Where,

A = What term will have 13 differrent 'blocks in it? Take the term number. That will be 'A'.
B = The number of blocks that will be in term3, subtract one.
C = I can't think of an equation that adds up to this number so I'll just tell you: Zero...
D = Dang it! Just look at the hint for C...
E = The number of blocks that will be in term3, minus the term number that will have seven blocks in it.
F = The digital root of the number of blocks that will be in term10.

 

Now that you're done that, it shall take little skill, and basic substitution to find the coordinates for the first stage of this two stage multi.
 

The cache:

The cache is a two stage multi. The first stage is a clear plastic container, with two numbers on i. One is a bearing, and one is a distance, measured in meters. It shouldn't be very hard to figure out what to do with those two numbers--*CoughProjectionCough*!--. The final stage is a small, green taped container with a vibrant red lid, stashed behind rocks. Carefull in the area--I'm sure it's fine, but I have occasionally seen a skunk wandering in and out of the woods. Most importantly, good luck, have fun, and replace the cache, and first stage container as found. Thanks.

HINTS AND/OR SPOILERS IN LOGS OR PHOTOS WILL BE DELETED. IT CAN TAKE DAYS TO THINK A CACHE LIKE THIS THROUGH, BUT YOU GUYS ARE ABLE TO RUIN IT IN ONE PICTURE/LOG. THANKS.

THIS DOESN'T MEANS DON"T TAKE PICTURES, IT JUST MEANS DON'T GIVE IT AWAY IN YOUR PICTURES.