CO 17 STS
Row 1 {WS}: *P*
Row 2 {RS}: P1 *K7, P1*
Row 3 {WS}: *P*
Row 4 {RS}: P2 *K5, P3* K5, P2
Row 5 {WS}: *P*
Row 6 {RS}: P3 *K3, P5* K3, P3
Row 7 {WS}: *P*
Row 8 {RS}: P4 *K1, P7* K1, P4
Row 9 {WS}: *P*
Row 10 {RS}: K4 *P1, K7* P1, K4
Row 11 {WS}: *P*
Row 12 {RS}: K3 *P3, K5* P3, K3
Row 13 {WS}: *P*
Row 14 {RS}: K2 *P5, K3* P5, K2
Row 15 {WS}: *P*
Row 16 {RS}: K1 *P7, K1*
Repeat rows 1-16, until desired length.