True or False Array?

I admit, this challenge is somehow strange. The objective is to find out if a given list is True or False. Here are some True lists:

[12, 40, 4, 6420, 20, 24, 400, 24]
[12.3, 46, 4, 7383, 23, 27, 529, 27.6]
[14, 80, 6, 12840, 40, 46, 1600, 48]

And here some False lists:

[18.1, 162, 9, 26091, 81, 90, 6561, 97]
[14.5, 90, 18, 14445, 18, 51, 2025, 54]
[19.2, 184, 9, 29592, 92, 101, 8464, 110.8]

All 8 values in the lists are connected in some way, you have to find out what the connection is. Go and play around with the 150 test cases and you'll figure it out.

Examples

tf_lst([12, 40, 4, 6420, 20, 24, 400, 24]) ➞ True

tf_lst([18.1, 162, 9, 26091, 81, 90, 6561, 97]) ➞ False

tf_lst([14.7, 94, 6, 15087, 47, 53, 2209, 56.4]) ➞ True

Notes

• All inputs are valid lists with 8 numbers.
• For a small hint, look at the Comments tab.