Colors A and B.
Repeat Rows 1 - 16

Row #SideColorBegin RowRepeatRepeat From *End Row
1WA*purl* 
2RA*knit* 
3WAp4*P1 wrapping yarn twice around needle; p3*p1
4RBk4*Slip 1 wyib dropping the extra wraps; k3*k1
5WBk4*sl 1 wyif, k3*k1
6RBk4*sl 1 wyib, k3*k1
7WBk4*sl 1 wyif, k3*k1
8RAk4*Drop slip stitch off needle to front of work, k2, pick up dropped stitch and knit it; k1*k1
9WA*purl* 
10RA*knit* 
11WAp4*P1 wrapping yarn twice around needle; p3*p1
12RBk4*Slip 1 wyib dropping the extra wraps; k3*k1
13WBk4*sl 1 wyif, k3*k1
14RBk4*sl 1 wyib, k3*k1
15WBk4*sl 1 wyif, k3*k1
16RAk2*sl 2 wyib; drop slip stitch off needle to front of work, slip the same 2 stitches back to left-hand needle, pick up dropped stitch and knit it; k3*k3