My attempt to adapt the bird's eye pattern seen here in stitch-maps into a bottom-up triangle. Reason is I want to avoid the center spine formed by top-bottom triangle shaped with increases. I noticed that the actual right side of the fabric is the wrong side of the pattern (like in trinity stitch). Here i use 3-st garter st border increasing every 4 rows to accomodate triangle's expansion. (note: still needs tweaks)
Shown with a cast-on count of 3 stitches.