Suggestions required for mounting 192 LEDs

Chiva: "differences between the VCCLite PCV 220 and the female header" Indeed, but look closer at the pinout view. It would suggest that rotating the right-hand pin by 180 degrees is possible (thus giving a diagonal layout).

You can't cram a .100 pinout into a diagonal arrangement. Which is the routing problem I'm having with the female header idea.