This pattern can be adapted to circular knitting by knitting all the even numbered rows.
Repeat Rows 1 - 20.

Row #SideRepeatEnd Row
1RRT, LT, p7, RT, LT, k7RT, LT
2Wpurl 
3RLT, RT, p7, LT, RT, k7LT, RT
4Wpurl 
5RRT, LT, p7, RT, LT, k7RT, LT
6Wpurl 
7RLT, RT, p7, LT, RT, k7LT, RT
8Wpurl 
9RRT, LT, p7, RT, LT, p7RT, LT
10Wpurl 
11RLT, RT, k7, LT, RT, p7LT, RT
12Wpurl 
13RRT, LT, k7, RT, LT, p7RT, LT
14Wpurl 
15RLT, RT, k7, LT, RT, p7LT, RT
16Wpurl 
17RRT, LT, k7, RT, LT, p7RT, LT
18Wpurl 
19RLT, RT, k7, LT, RT, p7LT, RT
20Wpurl 

  Additional Instructions and Notes
RTRight Twist: knit the second stitch on the left needle, then knit the first stitch, slip both stitches from the left needle. Alternate method: slip first stitch to cable needle and hold in back, k1, then k1 from cable needle.
LTLeft Twist: knit the the second stitch on the left needle through the back loop, then knit the first stitch, slip both stitches from the left needle. Alternate method: slip first stitch to cable needle and hold in front, k1, then k1 from cable needle.

 



Row: 20  
  Row: 19
Row: 18  
  Row: 17
Row: 16  
  Row: 15
Row: 14  
  Row: 13
Row: 12  
  Row: 11
Row: 10  
  Row: 9
Row: 8  
  Row: 7
Row: 6  
  Row: 5
Row: 4  
  Row: 3
Row: 2  
  Row: 1