CO in multiples of 12, plus 8
Row 1 (RS): P2 *K2, YO, SSK, P2*
Row 2 (WS): K2 *P2, YO, P2TOG, K2*
Row 3 (RS): P2 *K2, YO, SSK, P2*
Row 4 (WS): K2 *P2, YO, P2TOG, K2*
Row 5 (RS): P2 *C4F, P2, K2, YO, SSK, P2* C4F, P2
Row 6 (WS): K2 *P2, YO, P2TOG, K2*
Row 7 (RS): P2 *K2, YO, SSK, P2*
Row 8 (WS): K2 *P2, YO, P2TOG, K2*
Row 9 (RS): P2 *K2, YO, SSK, P2*
Row 10 (WS): K2 *P2, YO, P2TOG, K2*
Row 11 (RS): P2 *K2, YO, SSK, P2, C4F, P2* K2, YO, SSK, P2
Row 12 (WS): K2 *P2, YO, P2TOG, K2*
Repeat Rows 1-12, until desired length.