You might be able to put the table into PROGMEM to minimize your RAM usage.
Also, the compiler tries to not compile things it doesn't think have changed. I'm not sure, but it's possible that if you change the .h file it won't realize to recompile the .cpp file. In other words, if you change the numbers but not the sketch.
I don't like #includes in the middle of a declaration, personally. Why not just put the whole array into a separate file (including the declaration, and the trailing brace)?