Small Pine Trees

Knitted in a multiple of 18 sts, + 11 and a 16-row repeat.
Row 1 - right side: K1, * yo, p3, S2KP, p3, yo, k9; rep from * to last 10 sts, yo, p3, S2KP, p3, yo, k1.
Row 2 and all wrong side rows: Purl
Row 3: K1, * k1, yo, p2, S2KP, p2, yo, k10; rep from * to last 10 sts, k1, yo, p2, S2KP, p2, yo, k2.
Row 5: K1, * k2, yo, p1, S2KP, p1, yo, k11; rep from * to last 10 sts, k2, yo, p1, S2KP, p1, yo, k3.
Row 7: K1, * k3, yo, S2KP, yo, k12; rep from * to last 10 sts, k3, yo, S2KP, yo, k4.
Row 9: K1, * k9, yo, p3, S2KP, p3, yo; rep from * to last 10 sts, k10.
Row 11: K1, * k10, yo, p2, S2KP, p2, yo, k1; rep from * to last 10 sts, k10.
Row 13: K1, * k11, yo, p1, S2KP, p1, yo, k2; rep from * to last 10 sts, k10.
Row 15: K1, * k12, yo, S2KP, yo, k3; rep from * to last 10 sts, k10.

Knitting abbreviations:
K: Knit | P: Purl | Yo: Yarn over.
S2KP: sl2tog-k1-p2sso - Slip 2 stitches together as if to knit 2 stitches together, knit1, pass the slip stitches one at a time over the stitch just knitted and drop them.\