These values are generating correctly when I first generate a log of the graph and then generate an inverse for the log graph but when I directly generate inverse log functions in the dropdown, these values are not correct.

Go to the Selection Info panel and verify that all tracks have the expected y coord corresponding to the original value of 16:

Mac

inverse of log (16, base=3): 0.3962406

inverse of log (16, base=2): 0.25

inverse of log (16, base=10): 0.830482

inverse of natural log of 16: 0.3606738

When I am performing the inverse operation, the graph was shown empty, and then I adjusted the Max Value which showed the graph clearly.