type conversion – Ffmpeg PNG image sequence into 360 video

I’m trying to make a PNG sequence I got from blender(already in equirectangular format, same properties all files) into 360 equirectangular video for projection mapping. My files have 2 step frame rate resulting in file names such as 002-004-006…. How is this done with ffmpeg? I’m total noob with this program 🙂 Thank you.

I checked ffmpeg website, however for 360 format with filenames that does not have one step like 01-02-03, instead 2 steps like 02-04-06, I did not really understand how to convert my 7000 PNG images into 360 video.