Cast on with Color A and knit one row.
Colors A and B.
Repeat Rows 1 - 8

Row #SideColorBegin RowRepeatRepeat From *End Row
1WAp1*sl 3 wyib, p3*p1
2RB*k5, sl 1 wyif*k2
3WBp2*sl 1 wyib, p5* 
4RA*k5, insert left-hand needle down behind loose Color A strind of Row 1; lift this strand over the point of the left-hand needle and k2 tog-b (i.e., the Color A strand and the first Color B stitch on the needle)*k2
5WAp4*sl 3 wyib, p3*sl 3 wyib, p1
6RBk2*sl 1 wyif, k5* 
7WB*p5, sl 1 wyib*p2
8RAk2*insert left-hand needle under Color A strand of Row 5; k2 tog-b (as in Row 4); k5*