Thank you, neweaver. This pattern is from the book named "the big book of weaving", page146. To make a subtle gradation in colors, I used 7 threads from 5 different color yarns as a weft and changed the combination little by little.
Oh, it's a little difficult to explain it with my poor English. I hope it'll make any sense to you!
Thank you for searching it for me. I decided no to try deleting it.
Yes, this is a regular......., I think. I'm a beginner weaver, so I write down how I threaded so that you can check it.
I threaded 4,3,2,1,2,3,4,1,4,3,2,1,2,3,4,1,4,3,2,1,2,,,,,, and tied only one shaft to each treadles.