No
You probably wonder why the required TC against a 5 is higher than against the 6. This has to do with a particularity of ace-reckoned counts like the hilo.The higher the count gets the richer it is in aces.Now, an ace saves the dealer showing a six,not so with a five.
As to the four, its bust probality is lower than for the six even at high counts. The required TC for having an edge is +13.
To anticipate your next question, you can savely forget it against any other card.Either you never reach the edge or the required TC goes out of the window.
Francis Salmon