Elongated version: Rows 1 and 9 (RS): K1, k2tog, yo, k4, yo, ssk, repeat from * to last st, k1. Rows 2, 4, 6, 8, 10, and 12: Purl. Rows 3, 7, and 11: Knit. Row 5: K1, k1, yo, k2tog, k2, ssk, yo, k1, repeat from * to last st, k1.
Shown with a cast-on count of 18 stitches.