Hi there! I made this for me to better understand gaps and Goldbach pairs so I come up with this approach:
two prime lines from 0 to N and from N to 0, N/2 as mirror axis for Goldbach pairs, and gaps on prime lines are semicircles. On each point where both blue and red semicircles are aligned we have Goldbach pair. I can select any N<500 for now and see results. If anyone finds this interesting or helpful, I'll gladly share it, it works in browser.