I’m currently working on a Fibonacci sequence afghan done in mitered squares. When finished, it should somewhat look like this:

If you aren’t familiar with the Fibonacci sequence, it is a series of numbers where each one is the sum of the previous two. Starting with 1 the sequence is…

1, 1, 2, 3, 5, 8, 13, 21, 34, 55, …

I decided to multiply each number by 10 so the first square would be a decent size to start. I cast on 21 stitches so each side will have 10 plus I have one stitch for the diagonal line). So the square for 2 is 20 stitches on each side (or 41 stitches total).

My problem is that I’m barely halfway done with it (I’m on the square for 13…130 stitches on each side) and I don’t think my needles will be long enough for the next square let alone any more. The next square represents 21 meaning that it will have 210 stitches on each side. I will have to cast on 210 stitches plus one stitch for the diagonal and THEN pick up ANOTHER 210 stitches to join it to the afghan. At 40", the circular needles I’m using were barely long enough to handle the 261 stitches of my current block. I seriously doubt they will accommodate over 400 stitches for the next one. And I’m making this afghan to fit a full-sized bed.

Does anyone have a suggestion how to get through the next block? Or did I commit to the impossible? I’m at a total loss!