Speculations suggest that this is a trigonometric table, but the ratios are not in such a sequence. Some say this is a school exercise but questions remain... why does the 3rd column contain 8 prime numbers out of 15? What if this isn't a school exercise....but an astronomical record of some planetary event?
This alternate history game is part of the ZetaTrek project, which was mentioned on Slashdot last year."
Link to Original Source