Thunderbird Knit Purl Pattern

Pattern
Cast on a multiple of 14 stitches, plus 1.
Row 1 (RS): Knit.
Row 2 (WS): K1, *P13, K1; rep from *.
Row 3: K1, *P1, K11, P1, K1; rep from *.
Row 4: P1, *K2, P9, K2, P1; rep from *.
Row 5: K1, *P3, K7, P3, K1; rep from *.
Row 6: P1, *K4, P5, K4, P1; rep from *.
Row 7: K1, *P5, K3, P5, K1; rep from *.
Row 8: P1, *K6, P1; rep from *.
Row 9: Purl.
Row 10: Purl.
Row 11: K7, *P1, K13; rep from * to last 8 sts, P1, K7.
Row 12: P6, *K1, P1, K1, P11; rep from * to last 9 sts, K1, P1, K1, P6.
Row 13: K5, *P2, K1, P2, K9; rep from * to last 10 sts, P2, K1, P2, K5.
Row 14: P4, *K3, P1, K3, P7; rep from * to last 11 sts, K3, P1, K3, P4.
Row 15: K3, *P4, K1, P4, K5; rep from * to last 12 sts, P4, K1, P4, K3.
Row 16: P2, *K5, P1, K5, P3; rep from * to last 13 sts, K5, P1, K5, P2.
Row 17: K1, *P6, K1; rep from *.
Row 18: Knit.
Rerp rows 1-18.