Ultimate irony:
The design creates a coral style object but works up more successfully in acrylic yarn than wool.

https://theiff.org/press/interweave.html

N = 3.
N + 1 = 5 st in 4.
Ch any amount, begin first stitch in 2 nd ch from hook.
(3 sc, sc inc) across.
3 + 2 = 5 in 4 st.
Beginning chain needn’t be in any multiple.
Simply work the pattern to the end of the row, ch 1, turn, continue the patt count uninterrupted.

Worked 15 rows.
Last row: hundreds of stitches.
Made in about 5 hours.
Have to take frequent breaks because it gets hard on the hands. Tight gauge.