This geocache is part of the Murweh Triangle Geoart. It is NOT at the published coordinates. To find the cache, you need to work through the following.
Fill in the blank triangles to complete the large triangle. The number in each triangle is the sum of the two numbers below it. No Zeros are used.
Place the 6 missing numbers into Certitude from top to bottom, left to right as you go down.
You can validate your puzzle solution with certitude.